i need help badly. i'm using the computer in my sig. it was working fine and i left it on while i went to the store because it was installing something. my sister took the printer cable out and connected it to the other computer while both were still turned on. the cable is one of those parallel cables. when i came home, the computer was turned off. the red light from the motherboard is turned on so its getting power. I try to push the power button and the cpu fan, side fan, power supply, and motherboard gets power for like 2 seconds and then it shuts down. the motherboards red light is still turned on though. can someone please tell me whats going on? thanks