[gnome] GDM only displays background and mouse

view story

http://ubuntuforums.org – Well, I've really run into a predicament this time. Haven't posted here in a while.. 'Spose that's a good thing, as far as having issues goes :). I recently installed Ubuntu GNOME 13.04. Today I decided I'd update to GNOME 3.8. That went just fine, but certain changes made me want to go back. I used ppa-purge to remove the gnome3 and gnome3-staging PPAs, then removed their .list files manually from /etc/apt/sources.list.d/ because they were still there. (should they have been?) And that's where the problems started. That removed a lot of packages, including gdm and gnome-shell. I tried i (Hardware)