I had a breaker go off to my room the other day. I switched it back on and went to turn my computer on and my cable modem's USB connection to my PC sparked and killed my computer. The cable modem and computer both are connected to a surge protector, which is connected to a surge protector (so 2 layers of surge protection). I set up another computer and it worked fine... until I went to hook up my cable modem up to the computer. When I did, it sparked and killed it. When I plug up either computer, the fans and LED-power light both come on. However, pressing the power button doesn't shut it off. The USB ports were both front ports. When I looked inside and saw where the ports connected to the mobo, it's black from the shock/burn. There are no other places on the mobo where this is present. Am I pretty much screwed out of two computers? Is there anything I can possibly do to prevent this? Also, is it possible that the cable modem itself is the cause of the USB over load since it happened twice to two computers? The cable modem itself seems to work fine other than causing this shock.