3D Vision comes installed with Nvidia's drivers and I have the latest version installed.
I have a stereoscopic option in the options menu but it gives me the following options: USB IR & Glasses, Wired Glasses, Pro Hub Glasses and Discovery Glasses.
Each option won't let me get far enough to enable stereoscopic 3D.
Sounds stupid but google 'russian 3d dongle vision hack' and you'll find the answer.
LOL!The first link is this thread - lol