diff -Naur ./skencil-0.6.17/Sketch/UI/tkext.py ./skencil-0.6.17.patch/Sketch/UI/tkext.py
--- ./skencil-0.6.17/Sketch/UI/tkext.py	2002-04-05 01:47:30.000000000 +0400
+++ ./skencil-0.6.17.patch/Sketch/UI/tkext.py	2009-07-31 09:46:43.000000000 +0400
@@ -364,7 +364,7 @@
 
     def RebuildMenu(self):
 	if self.entries is not None:
-	    self.menu.delete(0, END)
+	    self.menu.tk.call(self.menu._w, 'delete', 0, END)
 	if self.rebuild_func is not None:
 	    try:
 		self.entries = self.rebuild_func()
@@ -375,7 +375,7 @@
 
     def SetEntries(self, entries):
 	if self.entries is not None:
-	    self.menu.delete(0, END)
+	    self.menu.tk.call(self.menu._w, 'delete', 0, END)
 	    for entry in self.entries:
 		entry.clean_up()
 	self.entries = entries