Hi all, I am diagnosing a problem with a Macbook I have at the moment, and I have some experience in fixing iBooks and Mac Minis in the past. The problem is that the MagSafe doesn't seem to be providing power to the Macbook, despite the green light always showing. The battery of course doesn't charge from it. The Macbook however works fine when powering from the battery. I am pretty sure the MagSafe is not dead because I tried it on another Macbook and it seems to work. Looking at the board, there doesn't seem to be any short pin, nor burnt components. So to recap - 1. When powering from battery, Macbook starts 2. When powering from MagSafe only (battery removed), Macbook doesn't start 3. MagSafe always shows green light when plugged in, but doesn't charge 4. MagSafe doesn't seem to be dead (there isn't any stuck pin etc either) Okay so, any ideas guys? Any diagnostic I can try? I've done a search but can't find anything. Is it a common problem or not? Thanks.