02.06.2010, 23:30
Most likely a video card issue, but could be one of many things. Try re-installing your video card drivers, if you still get the video corruptions, try replacing the video card. If this doesn't work, then slowly replace all other components in your pc until you are down to motherboard, if it turns out your motherboard is faulty then, if the pc is over 3 years of age you should really just replace the entire box.