I gave my old Pentium 3, cpu 730, ram 640, to my neighbours boy, apparently he has loaded hardware on that caused a conflict, I am doing a full install of XP PRO, I had XP PRO on this computer for 4 years, no problems, the XP CD loads the files etc and formats the hard drive, says it is going to reboot, which it does, but then goes through the whole precedure again, loading the same files, leaving the XP CD out of drive, the computer boots up with the cmos readouts, does not get to the Windows symbol, then reboots.

Have taken the 3 sticks of ram out and checked, also Video card, all OK

Hoping someone can give me an answer. Billiewing

Couple of days ago read somewhere a Virus? Is out there, and it makes your computer continuiously reboot, Don't know if that is your case. Hopefully more answers are to follow.
Try System Restore?

Boot into the Recovery console using the XP CD. Use the console to check for several hidden files:

Ntldr, boot.ini, ntdetect.com.

Use the "attrib" command to unhide the above files, as follows:

Attrib -h ntldr
Attrib -h boot.ini
Attrib -h ntdetect.com

If you get an error, then one of these files are missing, causing the continuous reboot. Copy the file over from the XP CD.

You might also try a repair install.

If the above doesn't work, you can also try the "Fixboot" command.