Sorry for the previous double post. The problems are still there: the same exact problems. I thought it was because of the upgrade to the new feisty kernel 2.6.20-9, BUT after having reinstalled nvidia drivers I'm having the same problems. I tried also to run xorg with nv drivers and the same problems appears. So it's not a nvidia drivers problem.
I hope someone has a clue. -- Choppy xorg after upgrade to xorg 7.2 https://launchpad.net/bugs/87786 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs