Question Modern Warfare 2 doesn't go full screen exclusive

[Thor_Fx]

I keep getting this message saying "Fullscreen is not supported because we detect that the monitor is connected to another GPU than the one used to run the game" . Obviously I'm not. It was working before just fine before all the updates to the game and Nvidia drivers. Any clue on how to fix this and get my game to work like normal again>?

 

[rgd1101]

reinstall the nvidia driver