Hi, Built this system for a mate: amd 3500 abit ul8 mobo 4 x 256mb RAM nvidia 5200 Problem: the system randomly reboots...not all the time but occassionally...he could be playing a game, watching a film or just surfing....the system could run fine for days (dont mean he leaves it on for days but then suddenly it could reboot twice on the same day)... Please could you help resolve this problem.. Thanks guys... Cheers!!!