Nah i dont overclock or undervolt, never needed to i felt. Yeah ive tried verify files a few times but seems all is ok there. Thing is, alt and tab used to be ok in dune i think anyhow, its just recently been doing it, it could be due to a game patch as theres been a few patches over the weeks. For now ive set game to windowed fullscreen which lets me get to desktop ok but then fps suffers a bit i.e not as smooth. When it froze i left it for about 3 mins and somehow after pressing ctrl alt del i could get back to desktop when the black screen asking task man, log off, etc comes up. Then i notice the game ended and amd driver report tool shows up which i tried to fill best i could and send off and a funcom crash report came up which i clicked send. So hopefully they got some info to help with that issue tho knowing my luck is never looked at.