Ok so I just tried to start my MacBook Pro that i purchased in April of 2008 and when I pressed the start button it made the regular booting up noises of the computer hardware (several seconds into startup) with the screen blank than it shuts down within like two seconds of the startup. My mac is plugged into the wall + full battery. I'm not sure what's wrong with it and know I can't turn it back on until I get this fixed. Thanks for the help.