Hopefully someone else here can solve this mystery. I just replaced my battery because it wasn't holding much charge and the new battery won't charge at all !! The battery indicator says "Not Charging" and the light on my power cord stays green. I've tried rebooting . Power off completely and restarting. I've even reset the PRAM with no success. why would this be the case? I even re-installed the old battery and it tries to charge ! Heeeelp