hello... i have had my macbook 2ghz c2d , 1gb ram, etc, since october with NO problems whatsoever- until now. i pull my macbook out of my tote to turn on- the screen flashes and goes out. do it again. same thing. i think, battery is dead. i plug it in- boots right up- i pull the AC out- goes out. put ac back in- boots right up- says FULLY CHARGED! battery tester on the back shows all green lights! my battery is fully charged- yet when my macbook suddenly only runs with the cord!! wtf?! any ideas on whats wrong or how to fix it? i love my macbook and reallly dont want to have to replace anything or buy anything or send it in. thanks guys!