I know this may be a old topic but I am looking for some answers. My SR MacBook Pro green charger goes out every once in a while. If you unplug it from the computer and plug it in it comes back on. If the light goes out it still will run off of the AC power. I have Applecare and called them a few time we reset the SMC. I have a second charger and it does it also. Apple care said take it to a Apple store and they will run a test. When I went to the Apple store And talked to the Genius. He said they will the test cd run it for 72 hours or I can do it at home. So here I am running the hardware test. I think the problem is inside the MBP, any thoughts? I will like to get it repaired while it is still under Applecare.Anyone else had this problem and how are you dealing with it?