gnome nautilus menu -- stopped working

[xigen]

My system (ubuntu studio 9.10, 32bit) was working just great. Then I installed dropbox via synaptic -- and it worked just great.

Then I got some very strange behavior in how my tabs (firefox) worked, and the windows on the system would no longer respond.

I restarted.... and the behavior got worse.. my menu would not show up, and when I opened dropbox -- the windows would not move, their menu(s) did not work, and I could not close them.

I tried to:
-- reinstall gnome
-- reinstall nautilus
-- remove dropbox

Yet the behavior persists.

Suggestions?

Cheers,

MW

[xigen]

The system is back.

I got into recovery mode and reinstalled:
-- the x-server
-- and compiz

Now the system appears to be working just fine.

Best,

MW