--- CallTipWindow.py.orig	2009-06-11 13:33:24.000000000 -0500
+++ CallTipWindow.py	2009-06-11 13:33:38.000000000 -0500
@@ -102,7 +102,8 @@
             self.hidetip()
         else:
             self.position_window()
-            self.widget.after(CHECKHIDE_TIME, self.checkhide_event)
+            if event is None:
+                self.widget.after(CHECKHIDE_TIME, self.checkhide_event)
 
     def hide_event(self, event):
         if not self.tipwindow: