The problem is with my son's computer, which is out of town. I will try to be as specific as I can. He was on his computer this morning and did some email. Installed a new printer last night and was trying the scan feature. He scanned a picture and everything worked fine. He downloaded a song last night and was listening to it. He then noticed that his icons on the desktop were not right. His icon for internet explorer had a microsoft word icon. It seems that the office icons were screwed up. He was able to get to the internet but icons weren't right. I told him to try and reboot the computer and that is when everything started. The computer would not start. He just gets a black screen with a blinking cursor. I had him try and hit the F8 key while starting up but he just gets a keyboard error. He tried F2 for setup but still the same problem. Tried another keyboard and no change. It is a Dell computer about 3 years old. He is on his third power supply. Power seems to be ok. Operating system is windows xp. I know I do not have much info but any suggestions would be appreciated.