DVD Encoding in a Fridge

When I encode MPEG2 using my laptop (ThinkPad T60), it becomes very hot and either suspends or turns off automatically. I had the same problem last summer with my old ThinkPad X30, but I was disappointed that the same happened to the new T60.

I probably need to send back the T60 to check because it's still withing the warranty, but to circumvent the situation, I put the T60 in my fridge last night. When I woke up this morning, the encoding was done. (Of course, the computer was suspended because it's out of battery.)