Really could use some help on this one, as it makes NO sense to me. All of a sudden my HP Pavillion won't turn on. When I press the power button, I hear the whirring and buzzing of the CPU and a few lights blink but nothing loads. No BIOS, nothing. In fact, The moniter power button which glows yellow when the CPU is off, but glows green when the CPU is on, stays yellow. Here is the ODD thing. When I hold down the power button to shut it off after nothing has loaded and try it again about 1 out of 10 times it will turn on and boot normally. What could possibly be the problem? It has to be physical, right?