I finished building my first case and booted it up. I had the covering off because I had made a mistake earlier with my optical and hard drives. I was installing XP when I made the stupid mistake to try and secure the side panel, which was loosely attatched. My wires were not secure so one dropped and hit the graphics card, there was a pop and it turned off. I was afraid I had just fried the system, but it turned on fine. However, I got an Operating System error message. My O/S was 25% installed when this happened, and I cannot get it to restart the installation process. Any ideas on what I should do?