Hi, I recently installed PCI Sound Card software from a CD. The CD was scratched though, and when I ran it it said that there were a few missing files or something. I installed it anyways but it failed, and now whenever I load Windows the setup program loads automatically even when the CD is not in my CD drive and prompts me for a Windows OS CD. When I put my OS CD in and reboot, it still displays that message. How do I remove this?