I just updated to windows 8 and things were working fine for half an hour, and then my screen colors go nuts like the start of this video. I tried updating the drivers, rolling back, and uninstalling and reinstalling.
Colors are fine on a few resolutions, using 1680 x 1050, normally use 1920 x 1200.
Using a Radeon HD 5770
The menu on the right is the monitor's settings menu, so it doesn't seem to be a faulty display.