I am having the same problem installing Vista on a Dell Dimension 2400, 1 gb mem, ati radian 1300 video card. It has win xp pro w/ sp2 & all win updates. I disabled the onboard video card and installed the ati card before the upgrade. I get through the entire installation and when it is completing installation I get a black screen I have to manually power it down only to see that installation failed and it restores windows back to xp.
Any ideas?
I installed vista on my laptop and didn’t have any problems. Could the problem be two video cards?