The computer is based on Windows 98 SE, I updated it to XP professional and it worked fine for many months.
1) Yes, I did format the drives and wasnt able to use my Windows 98 CD to restore it, so I used the XP cd and it worked fine for a day, then it died again.
2) It was installed on it at the time, however, not no more.
3) That I know it wasnt because I dont install programs on my PC unless I restore it or add a new operating system.
4) There were no other machines connected to it.
5) Yes, the only thing ive installed maunally is the RAM and it works fine.
6) Safe mode, safe mode with networking, safe mode with command promt, Last good condition, and normaling starting it will only cause it to restart again.
7) Yes, it was ok for a day and I did get back on the internet as soon as I fixed it to updated it.