Desktop enabled? Please help.

I changed a setting in the application browser of GNOME desktop settings. Something called ‘enable the desktop’. Now I don’t know how to cancel this, I only see a white desktop. Please help, I don’t know what to do:confused:

After trying and trying and and complete desperation I solved the problem: I started IceWM and deleted all compiz-files (just search for compiz and then delete all of them). Then I started Gnome and everything was like before. I’m so glad! Sorry for this thread…