See the problem here? The GUI for the file browser looks strange like this. I have an EVGA GeForce GTX560Ti graphics card. I got the drivers Ubuntu asked me to get. However this still happens from time to time. Restarting fixes about 75% of the time. Also, from the login screen, the power menu (with suspend, shut down, restart) also looks like this.
How can I fix this? It's really annoying.
PS: My processor is an Intel i5, if it helps.