diff -rup old/src/virtManager/manager.py virt-manager-0.8.3/src/virtManager/manager.py
--- old/src/virtManager/manager.py	2010-04-14 13:01:23.776680000 -0400
+++ virt-manager-0.8.3/src/virtManager/manager.py	2010-04-14 13:02:45.615300000 -0400
@@ -211,7 +211,7 @@ class vmmManager(gobject.GObject):
                                         vmlist.get_model().get_iter_first())
 
         # Queue up the default connection detector
-        gobject.idle_add(self.engine.add_default_connection)
+        util.safe_idle_add(self.engine.add_default_connection)
 
     ##################
     # Common methods #