I was wondering if someone would be willing to help me out with this, even though it's not specifically about a video editing PC:

My sister-in-law's computer has been acting up ever since her boyfriend tried to reinstall the OS. Now when the computer turns on, it gets through POST fine (it seems to, anyway) and makes it all the way to the Windows XP page with the scrolling bar. After that the screen goes blank and it makes a funny beep. What's going on?

If this isn't an appropriate question for this forum then go ahead and lock it. I just didn't want to be a jerk and sign up to some other message board somewhere just to ask one question.

Thanks guys.