I have a 2008 Macbook and ive never had any problems with it until recently and i cannot find anything similar on any website, I am in desperate need of some help. My Macbook charges when it is shut, in standby or shutdown but when in use and open the battery slowly declines and then turns itself off after about 2 hours. The light is green when open and declining and amber when closed and charging. I have replaced the charger and tried different sockets etc. I have tried loads of different things but nothing works. Please help, I cant afford to have it fixed/replaced.