The problem happens on my Nvidia 185 desktop as well. Solution proposed by Kees van Mill (#23) works in my case too. As a little simplification I'd suggest to run in terminal one command:
killall gnome-panel
The problem happens on my Nvidia 185 desktop as well. Solution proposed by Kees van Mill (#23) works in my case too.
As a little simplification I'd suggest to run in terminal one command:
killall gnome-panel