This also occurs on quantal:
compiz: Installed: 1:0.9.7.8-0ubuntu3 gnome-session-fallback: Installed: 3.4.2.1-0ubuntu1
This also occurs on quantal:
compiz: fallback:
Installed: 1:0.9.7.8-0ubuntu3
gnome-session-
Installed: 3.4.2.1-0ubuntu1