I recently picked up a 17" macbook pro. It does not start up. I get no display, no ding, no white light in the front. The only thing i get is power to the hard drive. I took it in to the apple store and he claims it is the logic board. I tried the bake method and heat gun on the board to try to temporary fix but still i got nothing. Is there anything else i could try or maybe something else is wrong with the mbp.