Hi there. i have a charging problem with my 2009 non uni-body white macbook. Ill try explain this best i can. when my macbooks battery drops to say 30% or lower and i place it on charge it will show the amber charging light. If i then do something like watch a youtube video, open more then one tab in my browser, open a program etc the charger will then completely stop charging. the amber light goes blank and my macbook says it is not charging. i then have to turn the charger off and then on at the power outlet for it to start charging again but once again if i do something it will stop again. Ive had this issue for a while but i have adapted to avoid it by not letting the batter go too low. but i would like to solve this issue if possible as it becomes very frustrating. also i have replaced the battery and charger so it is an issue within the computer itself. Any help appreciated. cheers, Sam.