Problems with nvidia Asus GTX580 Matrix Platinum and Premiere Pro CS5.5

I need a help with a situation: I have a grathics card Asus GTX580 Matrix Platinum and a program Adobe Premiere Pro CS5.5 + all the latest updates on the card and Adobe. Mercury GPU Acceleration is active. In file cuda_supported_cards.txt GeForce GTX 580 be present. So, the problem is - Premiere cannot use the GPU Grathics - it runs and work only with as a CPU i7 920 processor - and GPU grathics (playback and any render to h.264 formats) never did’nt work.
Thanks for all foe help.

p.s. this is a link of the card i have.