I have a Gigabyte GTX 275 in my 10.6.1 hackintosh.
It is running fine (with dual monitors) except that I cannot run it at the full resolution of my main display (1920x1200). If I do, clicking the application folder s in the dock and scrolling the app will generally cause a crash. (well not sure if it is really a crash, the 2 screens turn off, then I can't do anything but restart). I do not get this issue at any other resolution.
I have tried EFI studio to add a string (not sure if done correctly), but it has made no difference.
As the screen looks blurry in any other resolution I would really like to fix it. Any ideas greatly appreciated.