Alright, I read the above thread and found out that I need nvidia vision kit. Bought it and try to enable 3D vision from nvidia video option, but failed. Here is my setup:
Direct hdmi 1.4a cable from PC/ Geforce gtx 550 ti card to Optoma HD 66,
HD66 set to 3D nvidia vision option
Screen resolution set to 720P and frame rate is 120 hz
The 3d nvidia vision wizard setup program succesffuly recoginze the emiter, and the projector. And then the problem comes when it asks to select right and left eye images. To be honest, I don't see any different and the picture always look the same regardlress I look at them with right or left eye. Of course I use the glasses coming with the emitter kit.
Therefore the wizard setup always fails...
What I did wrong? Do I need additional wire from emitter to projector?