With troubleshooting hardware/software problems: saying what it does, what error pops up and checking pc temperatures helps us paint a picture.
With this situation, the problem is based visually....but we can't see what your seeing. Since you have probably have already un-intsalled the game, re-installed, checked for updated drivers, removed old ones and re-installed drivers, checked PC temperatures (not in this order exactly but you get it) ... instead of simply saying "We don't know", PP asked for a screenshot just to try and see what your talking about to provide another possible solution.