in ubuntu 11.10 on a macbook pro 7.1 i just removed unity and installed back gnome, everything is working perfectly but the desktop. Looks like i can't right-click on it, (while i can on panels and menu), not even with ctrl+alt+right-click and if i $touch something, it creates something but it does not appear in desktop view ( the one with background ).

It's not fundamental but would be nice :)
Thanks

ps: I know it's probably a common issue and I searched but its rather difficult to find something, since all keywords refers also to gnome-desktop, and install only related issues are shown :/