Windows 7: Press power button, blue screen after beep, then fine.

Hey guys, just a shot in the dark question, but:

I put a fresh install of windows 7 64-bit on this PC I built for my sister, and everything appears to go fine. However, after updating the bios, and installing the gfx card drivers, she tells me that when she presses the power on button, she gets a blue screen, the computer reboots, and then everything is fine.

Ideas as to what that might mean? If this is too little to go on, I'll head over there asap and go through the whole process, I just want a starting point.

Thank you for your time

Small edit: the system specs of my profile are the ones for her computer.

Check for a dump report. If you have one post it.

http://www.sevenforums.com/tutorials...en-forums.html
http://www.sevenforums.com/crashes-d...tructions.html