Comment 11 for bug 649939

I don't know if it's another bug or not, but i've got an error with the same symptoms as described here, but an error dialogs shows afterward that `polkit-gnome-authentication-agent-1` crashed. That would explained that the authentication success is not forwarded to the update manager, while authentication was successful and update works perfectly when closing the authenticate window.

The bug might be related to policykit-1-gnome.