pls tell me this is a driver thing. glitches in games on my living-room PC, starting right after teh Radeon Software Crimson Edition 16.8.3 Hotfix Update update:

The card isnt new but its never shown anything like this before. Temperatures look normal. Ive tried a different cable and the atrifacts are teh same. Id like to know what to test before I convince myself its dead. I also do some photo work on the lviing-room PC, so I realy need to know whether I can trust what I see on screen right now.