My computer will not turn on. First, let me tell you that just before this problem occured my daughter, in frustration over our internet service being interrupted, decided to unplug and replug everything on the back of the computer (including the power cord). I have checked the wall outlet and it's OK, and I have looked inside and all the cables are in place. I have noticed a green power light on the motherboard lights up when the unit is plugged in, however none of the fans turn on when the power button is pushed. None of the disk drives or monitor has power ... nothing. I first thought it was the power supply, but now I'm wondering if it's the power button or the motherboard. I have an ASUS A7V8X-X motherboard. Any ideas?? Thanks!