--- a/UIPainter.st	Thu May 08 03:07:09 2014 +0200
+++ b/UIPainter.st	Thu May 08 14:39:42 2014 +0200
@@ -3618,6 +3618,8 @@
 
     |canCutOrCopy|
 
+    treeView isNil ifTrue:[^ self].
+
     self canMoveOrAlignSelection        value:(treeView canMoveOrAlignSelection).
     self canResizeSelection             value:(treeView canResizeSelection).
     self canExchangeSelectionLayouts    value:(treeView canExchangeSelectionLayouts).