Hi Guys! Almost 2 years ago I bought a computer which is: Emachines, model: T6216 Desktop PC This computer came with Windows XP but several months ago I decided to install Windows Vista so that's what I did and Windows Vista was working fine for almost 4 months until now... The problem that I have now is that I woke up and try to turn on my PC and it won't boot... No error messages, nothing appears in the screen just a black screen and nothing else. I tried to take out some RAM and try it to boot but it won't do anything... I tried to disconnect all USB cables and nothing is working... The power is ON and the processor seems to be running but it never stops, I mean before when I turn my PC ON I use to hear the noise from the processor and after few seconds the noise stops but right now the noise doesn't stop and it seems that the processor is continue to run and it never stops. Can somebody please help me with this?