I too have this problem, and sometimes (not reliably) after increasing from 1 to 4 workspaces clicking on the second workspace clears the desktop, menubar and task bar leaving only the desktop image. The mouse moves at this point but I can't do anything except switch to command line via ctrl-alt-Fx and kill Xorg.
I'm running Ubuntu 12.04 in gnome classic mode on a Dell Inspiron 1545 laptop and just recently upgraded from 11.10. $uname -a Linux woodchuck 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in Ubuntu. https://bugs.launchpad.net/bugs/982616 Title: gnome classic workspace switcher settings not sticky To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/982616/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs