guys pls help something's off. an MMO feels sluggish since the nForce 64-bit Driver 6.25 Beta update and the FPS counter agrees with me.

Fatal error
The game has crashed and will now close.
DXGI_ERROR_DEVICE_REMOVED
The GPU device instance has been suspended.
That crash happened once too. i'm on a small form factor PC. i've restarted, reinstalled the game, and turned off recording. Before i go back to teh old driver, is there something i should check first? i would also like to understand how to measure this properly, because right now i am mostly going on feel and an FPS counter in the corner of the screen.