Hi. I have a new MacBook Pro, but I'm not really using that one yet. Instead, I'm using my old 2.5GHz Penryn. I've noticed lately that mine, as well as my friend's 2.4GHz model Penryn, get's quite hot around the Magsafe port, and the magsafe brick also gets extremely hot. It didn't use to do this. Does anyone know why?