Just wondering if this would work: I have a PC Radeon 7950 card, so I have no boot screen. However, I still have the old 2600XT that the Mac Pro originally shipped with. I was wondering if I could connect the DVI of the 2600XT to my LCD display and then the HMDI from my 7950 card to the display. Would that work to display a boot screen then can it be rigged to switch over to the 7950 once the OS is loaded? Is there some sort of script that I could write up to make that happen?