Hi, i've just bought a new computer from Cyberpowerinc. and it has been shutting down randomly on me i dont know what could be the problem, i'll just be sitting there and it'll shut down completely, as if i just flipped a switch and no more power goes to the computer. No lights, no nothin. i dont know if it might be temperature, but i've never seen it go above 97 degrees. im running an AMD Athlon 4000+ 1gb of Ram Windows XP 64bit edition an Asus A8N5X motherboard 3 fans currently set up in there and a 420w power supply i dont know what could be the problem, but i could really use some help on this. thanks for reading.