Nvidia Stereoscopic 3d

Hi,
Yesterday i tryed to activate NVidias stereoscopic 3d and it worked perfectly. After i restarted my PC it doesn`t work anymore! :-(
Other games like flight Simulator it still works as usual.

Somebody got an idea, what might hapend??

I actually never got it to work with Acknex!

I suppose you can try the nvidia-inspector tool to set a fitting Profile (one of a DX9-game, I suppose), but I don't know which one works.

If you figure it out, let me know, I'd love to see my game in stereoscopic 3D!