Index: xl/xlmisc.py
===================================================================
--- xl/xlmisc.py        (revision 2777)
+++ xl/xlmisc.py        (working copy)
@@ -635,6 +635,9 @@
         """
             Shows menu when user right-clicks on tab
         """
+        if event.type == gtk.gdk._2BUTTON_PRESS:
+            self.rename(widget, event)
+            
         if event.button == 3:
             self.create_menu()
             self.menu.popup(None, None, None, event.button, event.time)