CVS commit by kloecker: 

Backport CVS commit by staikos: 


don't connect null


  M +2 -0      kmmainwidget.cpp   1.132.2.2


--- kdepim/kmail/kmmainwidget.cpp  #1.132.2.1:1.132.2.2
@@ -1590,4 +1590,5 @@ void KMMainWidget::folderSelected(KMFold
   }
   mFolder = (KMFolder*)aFolder;
+  if ( mFolder ) { // == 0 -> pointing to toplevel ("Welcome to KMail") folder
   connect( mFolder, SIGNAL( changed() ),
            this, SLOT( updateMarkAsReadAction() ) );
@@ -1598,4 +1599,5 @@ void KMMainWidget::folderSelected(KMFold
   connect( mFolder, SIGNAL( msgRemoved(KMFolder *) ),
            this, SLOT( updateMarkAsReadAction() ) );
+  }
 
   readFolderConfig();