I only have a few minutes before library closes, so I gotta be quick.
Dell desktop (brother's)
P4 2.5
512mb rimm
XP pro SP3
Geforce 4200TI
It worked fine yesterday. I removed the cd burner and installed a dvd burner, booted up, everything was fine. Shut down to replace the gfx card with my old nvidia 5200. Booted up, no login prompt, just the default blue background. Shutdown, replaced gfx card, same issue. Replaced cd-rom with original, still same issue. System is in its original hardware state, but every time I boot up (even in safe mode), the login prompt never appears, just an empty background and a mouse. Any ideas?

"Any sufficiently advanced technology is indistinguishable from magic" ~ Arthur C. Clarke