by 'purging' update-manager, I assume you mean removing update-manager-gnome
I preformed the following: $ sudo apt-get remove update-manager-gnome $ sudo apt-get install update-manager-gnome $ sudo apt-get install update-manager-core however I still recieve a similiar experience to the one described in this bug. Since it's related but, to me, different enough, I have opened a bug against it. see #552247 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org