I know this is the iPhone forum, but I don't know where else to ask! I got a MBA in January, and it has been fine until about a month or two ago. Since then, it started overheating with in 2 minutes of use, and the fan would be on whether it is awake for asleep. I took it to the Genius bar a few times, and they said it is fixed. But it is still doing it. What should I do? Demand a replacement?