On 64-bit Oneiric
sudo apt-get install --reinstall libgl1-mesa-glx
did help after removing fglrx , now I'm able to run gnome-shell again without top panel being corrupted.
On 64-bit Oneiric
sudo apt-get install --reinstall libgl1-mesa-glx
did help after removing fglrx , now I'm able to run gnome-shell again without top panel being corrupted.