Index: kmail/kmfoldertree.cpp
===================================================================
--- kmail/kmfoldertree.cpp	(Revision 517326)
+++ kmail/kmfoldertree.cpp	(Arbeitskopie)
@@ -1436,8 +1436,8 @@
   {
     KMFolderImap *folder = static_cast<KMFolderImap*>( fti->folder()->storage() );
     // if we should list all folders we limit this to the root folder
-    if ( !folder->account()->listOnlyOpenFolders() &&
-         fti->parent() )
+    if ( !folder->account() || ( !folder->account()->listOnlyOpenFolders() &&
+         fti->parent() ) )
       return;
     if ( folder->getSubfolderState() == KMFolderImap::imapNoInformation )
     {