I managed to install the driver with your instructions.
Graphics working fine now with my Zotac GTX 470, very smooth!
I only have one problem left, after the white Apple boot-screen a blue screen (not "the blue screen")
appears an won't go away until I manually shut my monitor of and on.
Does someone knows why this happens, is there a fix?
Anyway thanks for great tutorial!
Tried to play Portal now, it works smooth on 1920x1200.
Just a little graphic glitch for 1-2 seconds when you start the game, probably the 1st loading screen.
In game no glitches, everything is working like it should!