Possible Duplicate:
Unity 3d no longer works after installing 12.04
Just installed 12.04. This is the first time I run Ubuntu with the Unity UI, not a pleasant experience. The responsiveness is extremely slow (10s after a mouseclick), the screen flickers. All right after logging in. Switching the display driver from Nvidia current to post-release doesn't help at all. What now? Can't go back, but Ubuntu is useless to me right now.
What can I do?
(The system is a Intel 4x2.4Ghz with 4Gb RAM and a Nvidia 8800.)
