Finally I change my motherboard Nvidia GTS 250 for an ATI HD 5770. Now with my new HD 5770, I can use Steroscopic player in software pageflipping mode without any problem, I can watch movies in full HD 3d. I can also play games in 3D with iZ3D, the ATI driver has a option for put the games at a specific refresh rate, which is what I needed for my ViewSonic projector, because it only puts in 3d mode when the rate is 120 HZ. I'm totally happy to change to ATI, is a board for all types of 3D device not like Nvidia than can only force to use your 3D Vision glasses or having to lose image quality by using interlaced for LCD glasses that are not Nvidia, when they also support pageflipping.
