Heat, definitely. Also, that was the time you started seeing 17"+ notebooks on the high end. One of my wife's friends bought a 20" "laptop" for her electrical e

Heat, definitely. Also, that was the time you started seeing 17"+ notebooks on the high end. One of my wife's friends bought a 20" "laptop" for her electrical engineering work. It looked comical on her lap, but was awesome for bringing work home on.