diff --git a/src/board/UBBoardView.cpp b/src/board/UBBoardView.cpp
index c2701f10..48bcfa8d 100644
--- a/src/board/UBBoardView.cpp
+++ b/src/board/UBBoardView.cpp
@@ -214,7 +214,7 @@ UBBoardView::keyPressEvent (QKeyEvent *event)
         case Qt::Key_Control:
         case Qt::Key_Shift:
           {
-            mMultipleSelectionIsEnabled = true;
+            setMultiselection(true);
           }break;
         }
 
@@ -274,6 +274,10 @@ UBBoardView::keyPressEvent (QKeyEvent *event)
             }
         }
     }
+
+    // if ctrl of shift was pressed combined with other keys - we need to disable multiple selection.
+    if (event->isAccepted())
+        setMultiselection(false);
 }
 
 
@@ -284,7 +288,7 @@ void UBBoardView::keyReleaseEvent(QKeyEvent *event)
         if (Qt::Key_Shift == event->key()
           ||Qt::Key_Control == event->key())
         {
-            mMultipleSelectionIsEnabled = false;
+            setMultiselection(false);
         }
     }
 
@@ -459,7 +463,7 @@ void UBBoardView::handleItemsSelection(QGraphicsItem *item)
     
         
         // if we need to uwe multiple selection - we shouldn't deselect other items.
-        if (!mMultipleSelectionIsEnabled)
+        if (!isMultipleSelectionEnabled())
         {
             // here we need to determine what item is pressed. We should work
             // only with UB items.
@@ -627,8 +631,8 @@ QGraphicsItem* UBBoardView::determineItemToPress(QGraphicsItem *item)
     {
         UBStylusTool::Enum currentTool = (UBStylusTool::Enum)UBDrawingController::drawingController()->stylusTool();  
 
-        // groups should should be moved instead of strokes groups
-        if (item->parentItem() && UBGraphicsStrokesGroup::Type == item->type())
+        // groups should should be moved instead of strokes groups
+        if (item->parentItem() && UBGraphicsStrokesGroup::Type == item->type())
             return item->parentItem();
         
         // if item is on group and froup is not selected - group should take press.
@@ -687,14 +691,14 @@ void UBBoardView::handleItemMousePress(QMouseEvent *event)
 {
     mLastPressedMousePos = mapToScene(event->pos());
 
-    // Determining item who will take mouse press event 
-    //all other items will be deselected and if all item will be deselected, then
-    // wrong item can catch mouse press. because selected items placed on the top
-    QGraphicsItem *pressedItem = determineItemToPress(movingItem);
-
-    handleItemsSelection(movingItem);
+    // Determining item who will take mouse press event 
+    //all other items will be deselected and if all item will be deselected, then
+    // wrong item can catch mouse press. because selected items placed on the top
+    QGraphicsItem *pressedItem = determineItemToPress(movingItem);
+
+    handleItemsSelection(movingItem);
 
-    if (mMultipleSelectionIsEnabled)
+    if (isMultipleSelectionEnabled())
         return;
 
     if (itemShouldReceiveMousePressEvent(movingItem))
@@ -792,6 +796,11 @@ void UBBoardView::moveRubberedItems(QPointF movingVector)
     scene()->invalidate(invalidateRect);
 }
 
+void UBBoardView::setMultiselection(bool enable)
+{
+    mMultipleSelectionIsEnabled = enable;
+}
+
 void UBBoardView::longPressEvent()
 {
    UBDrawingController *drawingController = UBDrawingController::drawingController();
@@ -1090,7 +1099,7 @@ UBBoardView::mouseReleaseEvent (QMouseEvent *event)
                 !(movingItem->parentItem() && UBGraphicsW3CWidgetItem::Type == movingItem->type() && UBGraphicsGroupContainerItem::Type == movingItem->parentItem()->type()))
              {
                  bReleaseIsNeed = false;
-                 if (movingItem->isSelected() && mMultipleSelectionIsEnabled)
+                 if (movingItem->isSelected() && isMultipleSelectionEnabled())
                     movingItem->setSelected(false);
                  else
                  {
diff --git a/src/board/UBBoardView.h b/src/board/UBBoardView.h
index f2aa69ee..1aae71ba 100644
--- a/src/board/UBBoardView.h
+++ b/src/board/UBBoardView.h
@@ -44,6 +44,9 @@ class UBBoardView : public QGraphicsView
         void rubberItems();
         void moveRubberedItems(QPointF movingVector);
 
+        void setMultiselection(bool enable);
+        bool isMultipleSelectionEnabled() { return mMultipleSelectionIsEnabled; }
+
     signals:
 
         void resized(QResizeEvent* event);
diff --git a/src/core/UBApplication.cpp b/src/core/UBApplication.cpp
index ec8280e4..75591e73 100644
--- a/src/core/UBApplication.cpp
+++ b/src/core/UBApplication.cpp
@@ -582,6 +582,12 @@ bool UBApplication::eventFilter(QObject *obj, QEvent *event)
             boardController->controlView()->forcedTabletRelease();
     }
 
+
+    if (event->type() == QEvent::ApplicationActivate)
+    {
+        boardController->controlView()->setMultiselection(false);
+    }
+
 #ifdef Q_WS_MAC
     if (bIsMinimized && event->type() == QEvent::ApplicationActivate){
         if (mainWindow->isHidden()) mainWindow->show();