Hi all, First, sorry my bad English, I'm from Peru. Well I got a Macbook Pro, the last refresh with 320M. I use it a lot on college, but on my home I love to use it on my external display (20") with a Magic Mouse + Bluetooth Keyboard. Well... On MAC OSX I sense no heat from the Macbook, even when I'm playing Portal on Steam, but on Windows, just on regular office work (Excel, Word...) it melt down! I'm worry about this, got the idea it's about the new graphic card, I haven't this issue with my older Macbook Pro. So, you think I should do something about this? Stop using it on clamshell mode with my external display? Or maybe get one of those heat fans they sell over there? Thanks for the advice.