Error: widget freezed after switching to board mode

src/core/UBApplication.cpp

@@ -237,7 +237,6 @@ int UBApplication::exec(const QString& pFileToImport)
     mainWindow->actionCut->setShortcuts(QKeySequence::Cut);
 
     connect(mainWindow->actionBoard, SIGNAL(triggered()), this, SLOT(showBoard()));
-    connect(mainWindow->actionBoard, SIGNAL(triggered()), this, SLOT(startScript()));
     connect(mainWindow->actionWeb, SIGNAL(triggered()), this, SLOT(showInternet()));
     connect(mainWindow->actionWeb, SIGNAL(triggered()), this, SLOT(stopScript()));
     connect(mainWindow->actionDocument, SIGNAL(triggered()), this, SLOT(showDocument()));

src/core/UBApplicationController.cpp

@@ -356,6 +356,8 @@ void UBApplicationController::showBoard()
     mDisplayManager->adjustScreens(0);
 
     emit mainModeChanged(Board);
+
+    UBApplication::boardController->freezeW3CWidgets(false);
 }