Hi, I am new here and I have a big problem... My computer is about 28 months old and has been working great until the other day... I turned it off at night and went to go turn it back on in the morning and it wont boot. It turns on only for 2-3 seconds I can hear the dvd drive and HDD make noise the screen never turns on then it shuts off. If I hold down the power button the computer stays on a little longer and the front indicator light begins to flash then it shuts down. There are no other noises to indicate bad RAM. The fans are running at normal speed. It does the same thing running off the battery or power cable. I thought maybe it was the HDD so I pulled it out and it is recognized by another computer. Any ideas what it could be? Could the thermal switch prevent the computer from turning on?