Hello,
I'm running an Optiplex GX260 with Windows 7. The motherboard boots from the onboard gfx card and if set to auto choose won't boot. When I was running Windows 2000 this wasn't a big deal. The PCI gfx card still loaded with windows and I would just miss the boot screens.
In Windows 7, the gfx drivers load without a problem but the montior that is attached is never detected. I pulled in a second monitor to make sure 7 wasn't letting me activate a monitor that wasn't there. (In 2000, I used the onboard video, turned on a "monitor" on the x1300 then moved the cable.)
The info:
Vision Tek Radeon x1300, PCI. Driver Version 8.351.0.0