I'm running Ubuntu 11.10. Yesterday some packages have been updated, including the NVDIA driver to 280.13. After this update, my machine behaves very weird. My task bar is flickering and sometimes disappearing, screens do not pop up and the machine response time is very long or there is no response.
I tried to deinstall the nvdia driver and install the '-current' driver again, but this does not help. I also tried to remove the xconf file, but this also doesn't help. How can I either fix the problem or downgrade to the current -1 version?