I was playing The Grim Adventures of Van Helsing and the screen would turn a solid color (white, black, yellow, pink, etc.) just after the intro screens. A small number of times I was able to play for half a minute before it would happen. I have to power the PC off, and back on, in order to recover. Diablo 3 plays fine. Fallout 4 is also doing right when loading a game. How else do I verify that it is the card? I am really out of the loop on utilities. Thanks.