If it helps I have mine working 100% on vga and can make it work on dvi and vga, but any change in screen resolution results in blue screen, which can be rememdied by clicking detect desplays "hard to see with blue screen" or sleep then unsleep computer.
The problems do seem to be related to to nvcap value. If you like I can upload the values I'm using via DSDT. "don't have them with me at the moment".