Comment 7 for bug 658584

@hallenrm
Vlad has this problem and he is not running fglrx (since fglrx is for ATi cards and he has an Nvidia card), so that won't necessarily help. But you can remove fglrx by opening a Terminal window (Ctrl+Alt+T) and running "sudo apt-get remove fglrx". If you're not sure if you're running fglrx, you can check using the instructions in post #3 at https://answers.launchpad.net/ubuntu/+source/linux/+question/157314 (and please let us know). Please also post the output of "uname -a".