I have this problem... where I used to be running XP pro, till it started restarting.
Thinking that it is a corrupted file, i decided to format the OS partition to reinstall. However, after formating, the computer keeps restarting (as usua) as a result, i have not been able to install XP at all. What is the problem really? I suspect it is a hardware problem... but I do not know how to verify it!