diff --git a/src/adaptors/UBSvgSubsetAdaptor.cpp b/src/adaptors/UBSvgSubsetAdaptor.cpp
index bc572989..80917eab 100644
--- a/src/adaptors/UBSvgSubsetAdaptor.cpp
+++ b/src/adaptors/UBSvgSubsetAdaptor.cpp
@@ -2415,7 +2415,6 @@ UBGraphicsCurtainItem* UBSvgSubsetAdaptor::UBSvgSubsetReader::curtainItemFromSvg
     QRectF rect = curtainItem->rect();
     rect.setWidth(svgWidth.toString().toFloat());
     rect.setHeight(svgHeight.toString().toFloat());
-    rect.translate(-rect.center());
 
     curtainItem->setRect(rect);
 
diff --git a/src/board/UBBoardController.cpp b/src/board/UBBoardController.cpp
index ad0ec53d..6efd102d 100644
--- a/src/board/UBBoardController.cpp
+++ b/src/board/UBBoardController.cpp
@@ -1981,3 +1981,4 @@ void UBBoardController::notifyPageChanged()
 }
 
 
+
diff --git a/src/board/UBBoardController.h b/src/board/UBBoardController.h
index a587b8be..ef2564f6 100644
--- a/src/board/UBBoardController.h
+++ b/src/board/UBBoardController.h
@@ -263,7 +263,6 @@ class UBBoardController : public QObject
         void pageChanged();
         void setDocOnPageNavigator(UBDocumentProxy* doc);
         void documentReorganized(int index);
-        void pageWillChange(int page, int nextPage);
 
     protected:
 
diff --git a/src/board/UBBoardPaletteManager.cpp b/src/board/UBBoardPaletteManager.cpp
index 94c28397..3338582e 100755
--- a/src/board/UBBoardPaletteManager.cpp
+++ b/src/board/UBBoardPaletteManager.cpp
@@ -38,6 +38,9 @@
 #include "web/browser/WBTabWidget.h"
 #include "web/browser/WBWebView.h"
 
+#include "desktop/UBDesktopAnnotationController.h"
+
+
 #include "network/UBNetworkAccessManager.h"
 #include "network/UBServerXMLHttpRequest.h"
 
@@ -76,7 +79,7 @@ UBBoardPaletteManager::UBBoardPaletteManager(QWidget* container, UBBoardControll
     , mpPageNavigWidget(NULL)
     , mpLibWidget(NULL)
     , mpCachePropWidget(NULL)
-    , mDesktopRightPalette(NULL)
+//    , mDesktopRightPalette(NULL)
     , mpTeacherBarWidget(NULL)
     , mpDesktopLibWidget(NULL)
 {
@@ -131,11 +134,11 @@ UBBoardPaletteManager::~UBBoardPaletteManager()
         delete mpDesktopLibWidget;
         mpDesktopLibWidget = NULL;
     }
-    if(NULL != mDesktopRightPalette)
-    {
-        delete mDesktopRightPalette;
-        mDesktopRightPalette = NULL;
-    }
+//     if(NULL != mDesktopRightPalette)
+//     {
+//         delete mDesktopRightPalette;
+//         mDesktopRightPalette = NULL;
+//     }
 }
 
 void UBBoardPaletteManager::initPalettesPosAtStartup()
@@ -153,34 +156,65 @@ void UBBoardPaletteManager::setupLayout()
  */
 void UBBoardPaletteManager::setupDockPaletteWidgets()
 {
+
+    //------------------------------------------------//
+    // Create the widgets for the dock palettes
+
+    mpPageNavigWidget = new UBPageNavigationWidget();
+    mpPageNavigWidget->registerMode(eUBDockPaletteWidget_BOARD);
+    connect(this, SIGNAL(signal_changeMode(eUBDockPaletteWidgetMode)), mpPageNavigWidget, SLOT(slot_changeMode(eUBDockPaletteWidgetMode)));
+
+    mpLibWidget = new UBLibWidget();
+    mpLibWidget ->registerMode(eUBDockPaletteWidget_BOARD);
+    mpLibWidget ->registerMode(eUBDockPaletteWidget_DESKTOP);
+    connect(this, SIGNAL(signal_changeMode(eUBDockPaletteWidgetMode)), mpLibWidget, SLOT(slot_changeMode(eUBDockPaletteWidgetMode)));
+
+//     mpCachePropWidget = new UBCachePropertiesWidget();
+//     mpCachePropWidget->registerMode(eUBDockPaletteWidget_BOARD);
+//     connect(this, SIGNAL(signal_changeMode(eUBDockPaletteWidgetMode)), mpCachePropWidget, SLOT(slot_changeMode(eUBDockPaletteWidgetMode)));
+
+//     mpTeacherBarWidget = new UBTeacherBarWidget();
+//     mpTeacherBarWidget->registerMode(eUBDockPaletteWidget_BOARD);
+//     connect(this, SIGNAL(signal_changeMode(eUBDockPaletteWidgetMode)), mpTeacherBarWidget, SLOT(slot_changeMode(eUBDockPaletteWidgetMode)));
+
+    //------------------------------------------------//
+    // Add the dock palettes
+    mLeftPalette = new UBLeftPalette(mContainer);
+
     // LEFT palette widgets
     mLeftPalette->registerWidget(mpPageNavigWidget);
     mLeftPalette->addTabWidget(mpPageNavigWidget);
+
     mLeftPalette->connectSignals();
 
+    //------------------------------------------------//
+
+    mRightPalette = new UBRightPalette(mContainer);
+
     // RIGHT palette widgets
     mRightPalette->registerWidget(mpLibWidget);
-    mRightPalette->registerWidget(mpCachePropWidget);
     mRightPalette->addTabWidget(mpLibWidget);
 
-    mRightPalette->registerWidget(mpTeacherBarWidget);
-    mRightPalette->addTabWidget(mpTeacherBarWidget);
+//     // ???
+//     mRightPalette->registerWidget(mpCachePropWidget); 
+//     mRightPalette->addTabWidget(mpCachePropWidget);
+
+//     // ???
+//     mRightPalette->registerWidget(mpTeacherBarWidget);
+//     mRightPalette->addTabWidget(mpTeacherBarWidget);
+
     mRightPalette->connectSignals();
+
+    //------------------------------------------------//
+
     mLeftPalette->showTabWidget(0);
     mRightPalette->showTabWidget(0);
+
+    //------------------------------------------------//
 }
 
 void UBBoardPaletteManager::setupPalettes()
 {
-    // Add the dock palettes
-    mLeftPalette = new UBLeftPalette(mContainer);
-    mRightPalette = new UBRightPalette(mContainer);
-
-    // Create the widgets for the dock palettes
-    mpPageNavigWidget = new UBPageNavigationWidget();
-    mpLibWidget = new UBLibWidget();
-    mpCachePropWidget = new UBCachePropertiesWidget();
-    mpTeacherBarWidget = new UBTeacherBarWidget();
 
     setupDockPaletteWidgets();
 
@@ -435,6 +469,8 @@ void UBBoardPaletteManager::containerResized()
             mKeyboardPalette->adjustSizeAndPosition();
     }
 
+    mLeftPalette->resize(mLeftPalette->width()-1, mContainer->height());
+    mRightPalette->resize(mRightPalette->width()-1, mContainer->height());
     mLeftPalette->resize(mLeftPalette->width(), mContainer->height());
     mRightPalette->resize(mRightPalette->width(), mContainer->height());
 }
@@ -569,6 +605,53 @@ void UBBoardPaletteManager::addItem(const QUrl& pUrl)
 
 }
 
+void UBBoardPaletteManager::changeMode(eUBDockPaletteWidgetMode newMode)
+{
+    switch( newMode )
+    {
+        case eUBDockPaletteWidget_BOARD:
+            {
+                mLeftPalette->setParent(UBApplication::boardController->controlContainer());
+                mRightPalette->setParent(UBApplication::boardController->controlContainer());
+
+                mLeftPalette->setVisible(true);
+                mRightPalette->setVisible(true);
+
+                containerResized();
+            }
+            break;
+
+        case eUBDockPaletteWidget_DESKTOP:
+            {
+                mLeftPalette->setParent((QWidget*)UBApplication::applicationController->uninotesController()->drawingView());
+                mRightPalette->setParent((QWidget*)UBApplication::applicationController->uninotesController()->drawingView());
+
+                mLeftPalette->setVisible(false);
+                mRightPalette->setVisible(true);
+
+                UBApplication::applicationController->uninotesController()->TransparentWidgetResized();
+            }
+            break;
+
+        default:
+            {
+                mLeftPalette->setVisible(false);
+                mRightPalette->setVisible(false);
+                mLeftPalette->setParent(0);
+                mRightPalette->setParent(0);
+            }
+            break;
+    }
+
+    emit signal_changeMode(newMode);
+}
+
+/*
+void UBBoardPaletteManager::slot_changeMode(eUBDockPaletteWidgetMode newMode)
+{
+    emit signal_changeMode(newMode);
+}
+*/
 
 void UBBoardPaletteManager::addItem(const QPixmap& pPixmap, const QPointF& pos,  qreal scaleFactor, const QUrl& sourceUrl)
 {
@@ -719,6 +802,7 @@ void UBBoardPaletteManager::changeStylusPaletteOrientation(QVariant var)
     mStylusPalette->setVisible(bVisible); // always show stylus palette at startup
 }
 
+/*
 UBRightPalette* UBBoardPaletteManager::createDesktopRightPalette(QWidget* parent)
 {
     mpDesktopLibWidget = new UBLibWidget();
@@ -729,6 +813,7 @@ UBRightPalette* UBBoardPaletteManager::createDesktopRightPalette(QWidget* parent
 
     return mDesktopRightPalette;
 }
+*/
 
 void UBBoardPaletteManager::connectToDocumentController()
 {
diff --git a/src/board/UBBoardPaletteManager.h b/src/board/UBBoardPaletteManager.h
index 1399898a..a9aa9e87 100644
--- a/src/board/UBBoardPaletteManager.h
+++ b/src/board/UBBoardPaletteManager.h
@@ -48,16 +48,20 @@ class UBBoardPaletteManager : public QObject
 
         void setupLayout();
         UBLeftPalette* leftPalette(){return mLeftPalette;}
+        UBRightPalette* rightPalette(){return mRightPalette;}
         void showVirtualKeyboard(bool show = true);
         void initPalettesPosAtStartup();
         void connectToDocumentController();
         void refreshPalettes();
 
         UBKeyboardPalette *mKeyboardPalette;
-        UBRightPalette* createDesktopRightPalette(QWidget* parent);
+//        UBRightPalette* createDesktopRightPalette(QWidget* parent);
+
+        void changeMode(eUBDockPaletteWidgetMode newMode);
 
     signals:
         void connectToDocController();
+        void signal_changeMode(eUBDockPaletteWidgetMode newMode);
 
     public slots:
 
@@ -66,6 +70,8 @@ class UBBoardPaletteManager : public QObject
         void addItem(const QUrl& pUrl);
         void addItem(const QPixmap& pPixmap, const QPointF& p = QPointF(0.0, 0.0), qreal scale = 1.0, const QUrl& sourceUrl = QUrl());
 
+//        void slot_changeMode(eUBDockPaletteWidgetMode newMode);
+
     private:
 
         void setupPalettes();
@@ -85,10 +91,10 @@ class UBBoardPaletteManager : public QObject
         /** The right dock palette */
         UBRightPalette* mRightPalette;
 
-        // HACK: here we duplicate the right palette for the desktop mode
-        //       we MUST refactor the architecture in order to use only one
-        //       right palette!
-        UBRightPalette* mDesktopRightPalette;
+//         // HACK: here we duplicate the right palette for the desktop mode
+//         //       we MUST refactor the architecture in order to use only one
+//         //       right palette!
+//         UBRightPalette* mDesktopRightPalette;
 
         UBActionPalette *mBackgroundsPalette;
         UBActionPalette *mToolsPalette;
diff --git a/src/board/UBBoardView.cpp b/src/board/UBBoardView.cpp
index 2eed5112..2cb28ef9 100644
--- a/src/board/UBBoardView.cpp
+++ b/src/board/UBBoardView.cpp
@@ -660,8 +660,8 @@ UBBoardView::wheelEvent (QWheelEvent *wheelEvent)
         QBool isSlectedAndMouseHower = itemsList.contains(selItem);
         if(isSlectedAndMouseHower)
         {
-            wheelEvent->accept();
             QGraphicsView::wheelEvent(wheelEvent);
+            wheelEvent->accept();
         }
 
     }
diff --git a/src/core/UBApplicationController.cpp b/src/core/UBApplicationController.cpp
index 4fad106a..f6b002ee 100644
--- a/src/core/UBApplicationController.cpp
+++ b/src/core/UBApplicationController.cpp
@@ -336,6 +336,7 @@ void UBApplicationController::showBoard()
     mMainWindow->boardToolBar->show();
 
     mMainMode = Board;
+    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_BOARD);
 
     adaptToolBar();
 
@@ -352,6 +353,8 @@ void UBApplicationController::showBoard()
     mUninoteController->hideWindow();
     mMainWindow->show();
 
+//     UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_BOARD);
+
     emit mainModeChanged(Board);
 }
 
@@ -365,6 +368,8 @@ void UBApplicationController::showInternet()
         UBApplication::boardController->hide();
     }
 
+    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_WEB);
+
     if (UBSettings::settings()->webUseExternalBrowser->get().toBool())
     {
         showDesktop(true);
@@ -384,8 +389,10 @@ void UBApplicationController::showInternet()
         mUninoteController->hideWindow();
         emit mainModeChanged(Internet);
     }
-    UBApplication::webController->show(UBWebController::WebBrowser);
 
+//    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_WEB);
+
+    UBApplication::webController->show(UBWebController::WebBrowser);
 }
 
 
@@ -397,6 +404,7 @@ void UBApplicationController::showDocument()
     mMainWindow->documentToolBar->show();
 
     mMainMode = Document;
+    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_DOCUMENT);
 
     adaptToolBar();
 
@@ -418,6 +426,8 @@ void UBApplicationController::showDocument()
 
     mUninoteController->hideWindow();
 
+//    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_DOCUMENT);
+
     emit mainModeChanged(Document);
 }
 
@@ -429,6 +439,8 @@ void UBApplicationController::showDesktop(bool dontSwitchFrontProcess)
         UBApplication::boardController->hide();
 
     mMainWindow->hide();
+    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_DESKTOP);
+
     mUninoteController->showWindow();
 
     if (mMirror)
@@ -444,6 +456,8 @@ void UBApplicationController::showDesktop(bool dontSwitchFrontProcess)
         UBPlatformUtils::bringPreviousProcessToFront();
     }
 
+//    UBApplication::boardController->paletteManager()->changeMode(eUBDockPaletteWidget_DESKTOP);
+
     UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
 }
 
diff --git a/src/core/UBPersistenceManager.cpp b/src/core/UBPersistenceManager.cpp
index 87f2a340..3987f615 100644
--- a/src/core/UBPersistenceManager.cpp
+++ b/src/core/UBPersistenceManager.cpp
@@ -592,6 +592,7 @@ UBGraphicsScene* UBPersistenceManager::loadDocumentScene(UBDocumentProxy* proxy,
 {
     if (mSceneCache.contains(proxy, sceneIndex))
     {
+        //qDebug() << "scene" << sceneIndex << "retrieved from cache ...";
         return mSceneCache.value(proxy, sceneIndex);
     }
     else
@@ -617,6 +618,8 @@ void UBPersistenceManager::persistDocumentScene(UBDocumentProxy* pDocumentProxy,
     QDir dir(pDocumentProxy->persistencePath());
     dir.mkpath(pDocumentProxy->persistencePath());
 
+    qDebug() << "saving page" << pSceneIndex + 1 << pDocumentProxy->persistencePath();
+
     if (pDocumentProxy->isModified())
         UBMetadataDcSubsetAdaptor::persist(pDocumentProxy);
 
@@ -635,92 +638,6 @@ void UBPersistenceManager::persistDocumentScene(UBDocumentProxy* pDocumentProxy,
 
 }
 
-void UBPersistenceManager::persistTeacherBar(UBDocumentProxy* pDocumentProxy, int page, sTeacherBarInfos infos)
-{
-    if(NULL != pDocumentProxy)
-    {
-        QFile f(pDocumentProxy->persistencePath() + UBFileSystemUtils::digitFileFormat("/page%1.svg", page + 1));
-        if(f.exists())
-        {
-            if(f.open(QIODevice::ReadOnly))
-            {
-                QDomDocument domDoc;
-                if(domDoc.setContent(f.readAll()))
-                {
-                    f.close();
-                    if(f.open(QIODevice::WriteOnly))
-                    {
-                        QDomElement rootElem = domDoc.documentElement();
-                        QDomNode teacherBarNode = domDoc.namedItem("teacherBar");
-                        if(teacherBarNode.isNull())
-                        {
-                            // Create the element
-                            QDomElement teacherElem = domDoc.createElement("teacherBar");
-                            rootElem.appendChild(teacherElem);
-                            teacherBarNode = teacherElem;
-                        }
-
-                        // Set the <teacherBar> element values
-                        QDomElement teacherBarElem = teacherBarNode.toElement();
-                        teacherBarElem.setAttribute("title", infos.title);
-                        teacherBarElem.setAttribute("phasis", infos.phasis);
-                        teacherBarElem.setAttribute("duration", infos.Duration);
-                        teacherBarElem.setAttribute("equipment", infos.material);
-                        teacherBarElem.setAttribute("activity", infos.activity);
-                        teacherBarElem.setAttribute("action1Teacher", infos.action1Master);
-                        teacherBarElem.setAttribute("action1Student", infos.action1Student);
-                        teacherBarElem.setAttribute("action2Teacher", infos.action2Master);
-                        teacherBarElem.setAttribute("action2Student", infos.action2Student);
-                        teacherBarElem.setAttribute("action3Teacher", infos.action3Master);
-                        teacherBarElem.setAttribute("action3Student", infos.action3Student);
-
-                        //  Save the file
-                        f.write(domDoc.toString().toAscii());
-                        f.close();
-                    }
-                }
-                f.close();
-            }
-        }
-    }
-}
-
-sTeacherBarInfos UBPersistenceManager::getTeacherBarInfos(UBDocumentProxy* pDocumentProxy, int page)
-{
-    sTeacherBarInfos infos;
-
-    if(NULL != pDocumentProxy)
-    {
-        QFile f(pDocumentProxy->persistencePath() + UBFileSystemUtils::digitFileFormat("/page%1.svg", page + 1));
-        if(f.exists())
-        {
-            if(f.open(QIODevice::ReadWrite))
-            {
-                QDomDocument domDoc;
-                if(domDoc.setContent(f.readAll()))
-                {
-                    QDomElement rootElem = domDoc.documentElement();
-                    QDomNode teacherBarNode = rootElem.namedItem("teacherBar");
-
-                    infos.title = teacherBarNode.toElement().attributeNode("title").value();
-                    infos.phasis = teacherBarNode.toElement().attributeNode("phasis").value().toInt();
-                    infos.Duration = teacherBarNode.toElement().attributeNode("duration").value().toInt();
-                    infos.material = teacherBarNode.toElement().attributeNode("equipment").value();
-                    infos.activity = teacherBarNode.toElement().attributeNode("activity").value().toInt();
-                    infos.action1Master = teacherBarNode.toElement().attributeNode("action1Teacher").value();
-                    infos.action1Student = teacherBarNode.toElement().attributeNode("action1Student").value();
-                    infos.action2Master = teacherBarNode.toElement().attributeNode("action2Teacher").value();
-                    infos.action2Student = teacherBarNode.toElement().attributeNode("action2Student").value();
-                    infos.action3Master = teacherBarNode.toElement().attributeNode("action3Teacher").value();
-                    infos.action3Student = teacherBarNode.toElement().attributeNode("action3Student").value();
-                }
-                f.close();
-            }
-        }
-    }
-
-    return infos;
-}
 
 UBDocumentProxy* UBPersistenceManager::persistDocumentMetadata(UBDocumentProxy* pDocumentProxy)
 {
diff --git a/src/core/UBPersistenceManager.h b/src/core/UBPersistenceManager.h
index b2a41937..9189e38f 100644
--- a/src/core/UBPersistenceManager.h
+++ b/src/core/UBPersistenceManager.h
@@ -20,21 +20,6 @@
 
 #include "UBSceneCache.h"
 
-struct sTeacherBarInfos
-{
-    QString title;
-    int phasis;
-    int Duration;
-    QString material;
-    int activity;
-    QString action1Master;
-    QString action1Student;
-    QString action2Master;
-    QString action2Student;
-    QString action3Master;
-    QString action3Student;
-};
-
 class UBDocument;
 class UBDocumentProxy;
 class UBGraphicsScene;
@@ -75,10 +60,6 @@ class UBPersistenceManager : public QObject
         virtual void persistDocumentScene(UBDocumentProxy* pDocumentProxy,
                 UBGraphicsScene* pScene, const int pSceneIndex);
 
-        virtual void persistTeacherBar(UBDocumentProxy* pDocumentProxy, int page, sTeacherBarInfos infos);
-
-        sTeacherBarInfos getTeacherBarInfos(UBDocumentProxy* pDocumentProxy, int page);
-
         virtual UBGraphicsScene* createDocumentSceneAt(UBDocumentProxy* pDocumentProxy, int index);
 
         virtual void insertDocumentSceneAt(UBDocumentProxy* pDocumentProxy, UBGraphicsScene* scene, int index);
diff --git a/src/desktop/UBDesktopAnnotationController.cpp b/src/desktop/UBDesktopAnnotationController.cpp
index 458c3534..a4b9c92d 100644
--- a/src/desktop/UBDesktopAnnotationController.cpp
+++ b/src/desktop/UBDesktopAnnotationController.cpp
@@ -56,7 +56,7 @@ UBDesktopAnnotationController::UBDesktopAnnotationController(QObject *parent)
         , mDesktopPenPalette(NULL)
         , mDesktopMarkerPalette(NULL)
         , mDesktopEraserPalette(NULL)
-        , mRightPalette(NULL)
+//        , mRightPalette(NULL)
         , mWindowPositionInitialized(0)
         , mIsFullyTransparent(false)
         , mDesktopToolsPalettePositioned(false)
@@ -89,7 +89,7 @@ UBDesktopAnnotationController::UBDesktopAnnotationController(QObject *parent)
     mTransparentDrawingScene = new UBGraphicsScene(0);
     mTransparentDrawingView->setScene(mTransparentDrawingScene);
 
-    mRightPalette = UBApplication::boardController->paletteManager()->createDesktopRightPalette(mTransparentDrawingView);
+//    mRightPalette = UBApplication::boardController->paletteManager()->createDesktopRightPalette(mTransparentDrawingView);
     //mRightPalette = new UBRightPalette(mTransparentDrawingView);
 
     mDesktopPalette = new UBDesktopPalette(mTransparentDrawingView);
@@ -158,7 +158,8 @@ UBDesktopAnnotationController::UBDesktopAnnotationController(QObject *parent)
 
 #ifdef Q_WS_X11
     connect(mDesktopPalette, SIGNAL(moving()), this, SLOT(refreshMask()));
-    connect(mRightPalette, SIGNAL(resized()), this, SLOT(refreshMask()));
+//    connect(mRightPalette, SIGNAL(resized()), this, SLOT(refreshMask()));
+    connect(UBApplication::boardController->paletteManager()->rightPalette(), SIGNAL(resized()), this, SLOT(refreshMask()));
 #endif
     onDesktopPaletteMaximized();
 }
@@ -859,12 +860,34 @@ void UBDesktopAnnotationController::onDesktopPaletteMinimize()
     }
 }
 
+void UBDesktopAnnotationController::TransparentWidgetResized()
+{
+/*
+    int rW = UBApplication::boardController->paletteManager()->rightPalette()->width();
+    int rH_ = UBApplication::boardController->paletteManager()->rightPalette()->height();
+    int rH = mTransparentDrawingView->height();
+
+    UBApplication::boardController->paletteManager()->rightPalette()->resize(rW+1, rH);
+
+  //  UBApplication::boardController->paletteManager()->rightPalette()->resize(500, 500);
+*/
+
+    onTransparentWidgetResized();
+}
+
 /**
  * \brief Resize the library palette.
  */
 void UBDesktopAnnotationController::onTransparentWidgetResized()
 {
-      mRightPalette->resize(mRightPalette->width(), mTransparentDrawingView->height());
+    int rW = UBApplication::boardController->paletteManager()->rightPalette()->width();
+    int rH_ = UBApplication::boardController->paletteManager()->rightPalette()->height();
+    int rH = mTransparentDrawingView->height();
+
+    UBApplication::boardController->paletteManager()->rightPalette()->resize(rW+1, rH);
+    UBApplication::boardController->paletteManager()->rightPalette()->resize(rW, rH);
+
+//      mRightPalette->resize(mRightPalette->width(), mTransparentDrawingView->height());
 }
 
 void UBDesktopAnnotationController::updateMask(bool bTransparent)
@@ -891,10 +914,15 @@ void UBDesktopAnnotationController::updateMask(bool bTransparent)
         {
             p.drawRect(mKeyboardPalette->geometry().x(), mKeyboardPalette->geometry().y(), mKeyboardPalette->width(), mKeyboardPalette->height());
         }
-        if(mRightPalette->isVisible())
+
+//        UBApplication::boardController->paletteManager()->mDesktopRightPalette
+        if(UBApplication::boardController->paletteManager()->rightPalette()->isVisible())
         {
             qDebug() << ">>>>>> Drawing the mask for the right palette";
-            p.drawRect(mRightPalette->geometry().x(), mRightPalette->geometry().y(), mRightPalette->width(), mRightPalette->height());
+            p.drawRect(UBApplication::boardController->paletteManager()->rightPalette()->geometry().x(), 
+                UBApplication::boardController->paletteManager()->rightPalette()->geometry().y(), 
+                UBApplication::boardController->paletteManager()->rightPalette()->width(), 
+                UBApplication::boardController->paletteManager()->rightPalette()->height());
         }
 
         p.end();
diff --git a/src/desktop/UBDesktopAnnotationController.h b/src/desktop/UBDesktopAnnotationController.h
index d61d7607..b3a9e37f 100644
--- a/src/desktop/UBDesktopAnnotationController.h
+++ b/src/desktop/UBDesktopAnnotationController.h
@@ -55,6 +55,9 @@ class UBDesktopAnnotationController : public QObject
         UBDesktopPalette *desktopPalette();
         UBBoardView *drawingView();
 
+        void TransparentWidgetResized();
+
+
     public slots:
 
         void screenLayoutChanged();
diff --git a/src/domain/UBGraphicsScene.cpp b/src/domain/UBGraphicsScene.cpp
index 524d7054..58c57a02 100644
--- a/src/domain/UBGraphicsScene.cpp
+++ b/src/domain/UBGraphicsScene.cpp
@@ -1171,7 +1171,7 @@ void UBGraphicsScene::addGraphicsWidget(UBGraphicsWidgetItem* graphicsWidget, co
 
     if (graphicsWidget->widgetWebView()->canBeContent())
     {
-        graphicsWidget->widgetWebView()->loadMainHtml();
+//        graphicsWidget->widgetWebView()->loadMainHtml();
 
         graphicsWidget->setSelected(true);
         UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, graphicsWidget);
diff --git a/src/gui/UBDockPalette.h b/src/gui/UBDockPalette.h
index 627535da..b69d0653 100644
--- a/src/gui/UBDockPalette.h
+++ b/src/gui/UBDockPalette.h
@@ -123,6 +123,8 @@ protected:
     /** The current widget */
     QVector<UBDockPaletteWidget*> mRegisteredWidgets;
 
+//     QVector<UBDockPaletteWidget*> mVisibleWidgets; // ???
+
 private slots:
     void onToolbarPosUpdated();
     void onResizeRequest(QResizeEvent* event);
diff --git a/src/gui/UBDockPaletteWidget.cpp b/src/gui/UBDockPaletteWidget.cpp
index d649d9a5..9cd1197c 100644
--- a/src/gui/UBDockPaletteWidget.cpp
+++ b/src/gui/UBDockPaletteWidget.cpp
@@ -24,3 +24,16 @@ QString UBDockPaletteWidget::name()
 {
     return mName;
 }
+
+void UBDockPaletteWidget::registerMode(eUBDockPaletteWidgetMode mode)
+{
+    if(!mRegisteredModes.contains(mode))
+        mRegisteredModes.append(mode);
+}
+
+void UBDockPaletteWidget::slot_changeMode(eUBDockPaletteWidgetMode newMode)
+{
+    this->setVisible(mRegisteredModes.contains(newMode));
+}
+
+
diff --git a/src/gui/UBDockPaletteWidget.h b/src/gui/UBDockPaletteWidget.h
index 69a70a8a..aa97a029 100644
--- a/src/gui/UBDockPaletteWidget.h
+++ b/src/gui/UBDockPaletteWidget.h
@@ -5,8 +5,17 @@
 #include <QPixmap>
 #include <QString>
 
+typedef enum
+{
+    eUBDockPaletteWidget_BOARD,
+    eUBDockPaletteWidget_WEB,
+    eUBDockPaletteWidget_DOCUMENT,
+    eUBDockPaletteWidget_DESKTOP,
+} eUBDockPaletteWidgetMode;
+
 class UBDockPaletteWidget : public QWidget
 {
+
     Q_OBJECT
 public:
     UBDockPaletteWidget(QWidget* parent=0, const char* name="UBDockPaletteWidget");
@@ -16,10 +25,21 @@ public:
     QPixmap iconToLeft();
     QString name();
 
+    void registerMode(eUBDockPaletteWidgetMode mode);
+
+    /* The current widget available mode list */
+    QVector<eUBDockPaletteWidgetMode> mRegisteredModes;
+
+
+
 signals:
     void hideTab(const QString& widgetName);
     void showTab(const QString& widgetName);
 
+public slots:
+    void slot_changeMode(eUBDockPaletteWidgetMode newMode);
+
+
 protected:
     QPixmap mIconToRight;   // arrow like this: >
     QPixmap mIconToLeft;    // arrow like this: <
diff --git a/src/gui/UBDocumentNavigator.cpp b/src/gui/UBDocumentNavigator.cpp
index 730911c8..74bd3611 100644
--- a/src/gui/UBDocumentNavigator.cpp
+++ b/src/gui/UBDocumentNavigator.cpp
@@ -141,13 +141,8 @@ void UBDocumentNavigator::updateSpecificThumbnail(int iPage)
     {
         // Save the current state of the scene
         pScene->setModified(true);
+        UBSvgSubsetAdaptor::persistScene(mCrntDoc,pScene, iPage);
 
-        if(UBApplication::boardController)
-        {
-            UBApplication::boardController->persistCurrentScene();
-        }
-
-        // Now, update the thumbnail
         UBThumbnailAdaptor::persistScene(mCrntDoc->persistencePath(), pScene, iPage);
 
         // Load it
diff --git a/src/gui/UBTeacherBarWidget.cpp b/src/gui/UBTeacherBarWidget.cpp
index 2644cb0f..1cc481fe 100644
--- a/src/gui/UBTeacherBarWidget.cpp
+++ b/src/gui/UBTeacherBarWidget.cpp
@@ -242,50 +242,14 @@ void UBTeacherBarWidget::populateCombos()
     QStringList qslPhasis;
     qslPhasis << tr("") << tr("I discover") << tr("I experiment") << tr("I train myself") << tr("I play") << tr("I memorize");
     mpPhasis->insertItems(0, qslPhasis);
-    mpPhasis->setCurrentIndex(0);
 
     QStringList qslDuration;
     qslDuration << tr("") << tr("Short") << tr("Middle") << tr("Long");
     mpDuration->insertItems(0, qslDuration);
-    mpDuration->setCurrentIndex(0);
 
     QStringList qslActivity;
     qslActivity << tr("") << tr("Alone") << tr("By Group") << tr("All together");
     mpActivity->insertItems(0, qslActivity);
-    mpActivity->setCurrentIndex(0);
-}
-
-void UBTeacherBarWidget::saveContent()
-{
-    sTeacherBarInfos infos;
-    infos.title = mpTitle->text();
-    infos.phasis = mpPhasis->currentIndex();
-    infos.Duration = mpDuration->currentIndex();
-    infos.material = mpEquipment->text();
-    infos.activity = mpActivity->currentIndex();
-    infos.action1Master = mpAction1->teacherText();
-    infos.action1Student = mpAction1->studentText();
-    infos.action2Master = mpAction2->teacherText();
-    infos.action2Student = mpAction2->studentText();
-    infos.action3Master = mpAction3->teacherText();
-    infos.action3Student = mpAction3->studentText();
-    UBPersistenceManager::persistenceManager()->persistTeacherBar(UBApplication::boardController->activeDocument(), UBApplication::boardController->activeSceneIndex(), infos);
-}
-
-void UBTeacherBarWidget::loadContent()
-{
-    sTeacherBarInfos nextInfos = UBPersistenceManager::persistenceManager()->getTeacherBarInfos(UBApplication::boardController->activeDocument(), UBApplication::boardController->activeSceneIndex());
-    mpTitle->setText(nextInfos.title);
-    mpPhasis->setCurrentIndex(nextInfos.phasis);
-    mpDuration->setCurrentIndex(nextInfos.Duration);
-    mpEquipment->setText(nextInfos.material);
-    mpActivity->setCurrentIndex(nextInfos.activity);
-    mpAction1->setTeacherText(nextInfos.action1Master);
-    mpAction1->setStudentText(nextInfos.action1Student);
-    mpAction2->setTeacherText(nextInfos.action2Master);
-    mpAction2->setStudentText(nextInfos.action2Student);
-    mpAction3->setTeacherText(nextInfos.action3Master);
-    mpAction3->setStudentText(nextInfos.action3Student);
 }
 
 void UBTeacherBarWidget::onValueChanged()
@@ -311,7 +275,6 @@ void UBTeacherBarWidget::onValueChanged()
         mIconToRight = QPixmap(":images/teacher_close.png");
     }
 
-    // TODO: refresh the icon
     UBApplication::boardController->paletteManager()->refreshPalettes();
 }
 
diff --git a/src/gui/UBTeacherBarWidget.h b/src/gui/UBTeacherBarWidget.h
index 555b6ef6..55fd98d3 100644
--- a/src/gui/UBTeacherBarWidget.h
+++ b/src/gui/UBTeacherBarWidget.h
@@ -39,7 +39,6 @@ private:
 
 class UBTeacherBarWidget : public UBDockPaletteWidget
 {
-    Q_OBJECT
 public:
     UBTeacherBarWidget(QWidget* parent=0, const char* name="UBTeacherBarWidget");
     ~UBTeacherBarWidget();