Hi. I am really upset because my trusty MacBook pro running the latest version of leopard decided not to turn on today. I already tried resetting the pram but I don't even hear the chime. I can hear my HD stRt but it downtown access anything. It just spins. Do you thnk I need a new logic board? I really hope not because They are like 400 on eBay. I tried taking the battery out And holding pwr button.