What makes you think the problem is with the video? If the video has been working through the install, I’d have a tendency to think there is another problem.
I would check th emanufacturer’s site for that error message and see what, if any, possibilities are offered.
If it still looks like a video problem, get yourself another video card and disable the current on, if it is onboard, or remove it.
If you could give us an idea of where, exactly, the install stops rather than 30 minutes into the install. The last install I did of 2000 took me less than 30 minutes to complete.