@blaising
i used NVinject and installed vanilla kernel from it.. didn't use any EFI strings, and everything was working. didn't use any kind of patching.. have xfx 9800gt 512mb
as i said, i only had problems because i plugged in the LCD in the 2nd slot.. so I only had problems with the resolution.. now I have it at 1680x1050 on Acer AL2215W 22"

@STLVNUB
could you give some insights on what this ACPI patcher does? Did your video card worked at first? or did you encounter any problems?

the only problem I'm dealing right now is that when I use Expose for revealing all the windows, and select one and release the key, it lags for a little.. kinda bugs me.. :/