Gnu-Panel

[Alfred JILKA]

Hi all,
alfter upgrading from feisty 64bit to gutsy 64bit I have a little 
problem with the panel.
I have 3 workspaces configured. Switching from the default one (which 
appears after a systemstart)
to another leaves me in 90% with a completely blank (only backdrop 
visible) workspace ... (sometimes it works as expected)
Alt-F2 gives me the input-dialog where I can start for example nautilus. 
But without
the bar I can't even switch back to the first workspace.

Some more info on environment:

kernel 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 
GNU/Linux
GNOME-Panel 2.20.0.1
AMD dual core, 2GB Ram
GeForce 8600 GT (proprietary driver)


Any ideas what to try are welcome, Alfred