Hi Guys My now antique Ibook G4 just doesn't wonna give up working. I normally let it run on the Power adapter. Last week I thought it might be a good idea to let the battery drain fully and than charge it up again. Since than the battery doesn't wonna charge fully I put the charger in; the light turns from green to red but than after 2-5 min it goes back to green again. It does that, never mind if the battery is 48% full or 74%. Is this a charger fault, battery problem or software setting??????? I first thought it might be a heat switch in the charger but its the same if I cool the charger with a external fan!!?