diff -r b622defdfd98 -r e9d01d824086 PLCOpenEditor.py
--- a/PLCOpenEditor.py	Wed Jan 31 16:31:39 2007 +0100
+++ b/PLCOpenEditor.py	Thu Feb 01 18:09:34 2007 +0100
@@ -2037,7 +2037,7 @@
 
     def RefreshTypeList(self):
         if self.Filter == "All":
-            self.ClassList = [choice for choice in self.FilterChoices if choice not in ["All","Interface","Variables"]]
+            self.ClassList = [choice for choice in self.FilterChoiceTransfer.keys() if choice not in ["All","Interface","Variables"]]
         elif self.Filter == "Interface":
             self.ClassList = ["Input","Output","InOut","External"]
         elif self.Filter == "Variables":