hey all, I used the search function here, didn't real help me, did some research and I have some ideas, but some help would be great... Ok, I got a virus about a week ago, it was fatal, I backed my data up, and formatted the drive, all is good. I got my XP cd, installed XP, all is well (I'm here aren't I?) and then I realized my version of XP is like... 5 years old. I went to microsoft update, got tons of updates, and the last one I was working on was the "Service Pack Two". When we installed this awhile ago, we had problems, but we had a friend fix it, so I have no idea what we did to fix this problem. Here we go... Start XP after SP2 is installed- little bar of loading, etc. then blank black screen... Reboot, start in safe-mode (all safe modes networking, command prompt, etc.) I get a huge list of drivers, last one that comes up is "mup.sys" So I googled it, found like 82934712342314 other people with the same-ish problem, but the stuff like "chkdsk /r" didn't work, the "un-plug your mouse" approach did nothing, so I'm here. Some people pointed out "mup.sys" is not the problem, and someone suggested the BIOS (which sounds familiar), any help would be fantastic, I really did try to do some problem-solving myself, but alas I am empty handed.