I haven't been able to find much information about this : whenever a fullscreen openGL application loads on this new Win7 machine it black-screens for about 5 mins, then recovers like nothing happened. It does the same thing when switching back out of fullscreen.
DirectX based stuff works just fine. No other oddities on the system. Hardware is all completely new, applied latest drivers for graphics (GTX 570) and windows, still no improvement.
Anyone know what's going on?