Alright I have installed windows 7 32 bit not too long ago. It was a clean install. I have had quite a few starting problems. I turned it off either sleep mode or not I do not remember, but it had troubles starting. Only after turning off the power to the power supply (via switch on the back of the case) and turning it back on I could start the computer with the power button. This happened every time from then on. Now the computer will not turn on. How can I get it to turn on??