Hi: I purchased an MBP a couple of months ago and it has operated flawlessly. I usually use it in my lap with a laptop pad underneath. Today, while using it, the fan came on, something that has never happened. When I touched the bottom of the machine, it was pretty darn hot. I shut it off for a half hour and turned it on and resumed work and after a while the fan came on again. I called Apple Care and was told it gets hot and I shouldn't use it on my lap (an odd bit advice considering it's a laptop). My question is has anyone experienced this heat issue. Is it something that would eventually require a repair or is it just a quirk of the machine? Thanks, Ron