Re: VGA to DVI on 6800
Have you tested your analog display with each DVI connector? Boot with the analog display on one DVI port three times. If you don't see a POST screen, try the other DVI port three times.
Sometimes my XFX dual-DVI cards have recognition problems when I switch betweeen analog and digital displays, between analog VGA and analog TV, or between single and dual-display configurations. The video configuration (vCMOS?) gets confused. Rebooting a few times often cures this.
I used to drive a Heisenberg, but whenever I'd glance at the speedometer, I'd get lost.