Here's the situation, my macbook air worked like a charm until recently when I allowed it's battery to drain completely dead while playing music. When I tried to start it the following happens: the computer DOES respond to pressing the power button the computer chimes and the screen flashes once after the flash the computer does not respond. The screen is black and the computer is (by all indicators) totally off. BUT IT ISN'T. The computer is running as indicated by the fan continuing to run. I cannot seem to trick it into any other activity that would give me somewhere to start Originally I believed the problem to be something in the power system. Here are some things I've ruled out; 1.) the problem IS NOT the magsafe power connection (I've swapped it out) 2.) the problem IS NOT the battery (I've swapped it out) So that is a bummer. Again I'm pretty much at square one. Ok, so this kinda leaves me thinking that maybe the logicboard is the problem? literally I have no idea and am grasping at straws. Any help or clarification would be appreciated.