I'm currently waiting on a replacement graphics card. The technician put in a temporary one while I waited. It's really, really old--an ATI radeon x550 256MB. I had trouble with it from the beginning. Strange drivers issues, graphics freezing in the middle of games, etc. Anyway...a game froze at one point, and I restarted the computer. It gets to the windows startup (where the bars run horizontally underneath the logo), goes blank, and reboots. I can't boot even in safe mode. I'm wondering if this problem could be caused by the video card (and might, therefore, be fixed once my replacement comes in) or if this is indicative of a bigger issue.