I was playing around with compiz-fusion settings (kde4, suse11.0) and afterwards I had a horizontal bar of black across the top of the screen, about an inch wide. I can't drag windows into this area, or move icons there, but my mouse goes there no worries, and when i fullscreen things (videos,pictures) it works fine. Login screens acts normally. Has anybody encountered this before? I'm at a real loss to what it might be.