I'm having similar issues, and I dunno how to fix it (the above suggestions aren't working). I'm on Ubuntu 9.04 as well. It's nothing to do with the desktop theme.
My problem is a bit quirkier... I had some apps open the other night ("ssh -X" windows) that overlapped the Gnome panel. I had to shut down the computer quickly to leave (just powered down) and now the window headers have become the new background for my Gnome panel. I dunno how that even happened. Changing themes just keeps 'em there. It doesn't hinder anything, but it looks atrocious and it's difficult to see many of the icons/etc up there now. How do I get my original panel back?
I'm having similar issues, and I dunno how to fix it (the above suggestions aren't working). I'm on Ubuntu 9.04 as well. It's nothing to do with the desktop theme.
My problem is a bit quirkier... I had some apps open the other night ("ssh -X" windows) that overlapped the Gnome panel. I had to shut down the computer quickly to leave (just powered down) and now the window headers have become the new background for my Gnome panel. I dunno how that even happened. Changing themes just keeps 'em there. It doesn't hinder anything, but it looks atrocious and it's difficult to see many of the icons/etc up there now. How do I get my original panel back?