hi,
im really a newbie when it come to trouble shooting

, my pc shutdown itself after i log in, sometimes after a few minutes, or if i click some of the application programs, i have addaware & norton 2005 anti-virus, and they are up to date even try running them and found nothing (virus) all the cables are secure even on the inside, grafix card is not over heating as i suspect & fans on the mboard & grafic card itself runs ok, i even try to remove the side panel for more ventilation, but still the propblem remains...
im willing to re-format the whole hard disc but i need to back it up as i have lottsa important files in, but & i cant do it because of the situation i described..or any means or bypass i can do to burn (back-up) my files?
appreciate any help...