my QE and CI are working now, thnaks to your method.

I have an nVidia 8400 GS 512 MB VRAM and i'm using iAtkos V7 (Snow Leopard 10.5.7)
At installing i've used VGA/DVI universa nVidia EFI String and i've installed also NVEnabler. I had all resolutions but no QE, CI - software, no rotation and no QuartzGL. I've tried to watch a movie with Mplayer (it is the fastest ) and at full screen was playing in slow motion.

i've deleted the EFI string as you said and i have only the NVenabler.kext now and it work fine.

My last problem now it's my keyboard.
After each reboot i have to put it out and back in to be functionally.
I have Apple PS/2 installed.

Thank you guys!