RPG MAKER 2000 OVERHEATING MY COMPUTER

I'm on a Compaq Presario V4000 laptop.

I've been having this issue for a couple of weeks now. It seemed to
start happening radomly one day for no reason. Now everytime I use RPG
maker 2000, and run the game I am currently working on, the CPU maxes out to 100% and the program starts chugging. I first I thought this might
have been my fault or somthing. Maybe I had some sort of complex parrallel process in the common events, but after checking up on that, that wasn't the issue. Then I did a full viris, spyware, and adware scan. I found some
adware, and deleted it, but still the problem keep occuring. Finally, I used MSConfig, and ran a selevtive startup, and disabled most of the background programs, and still no change in performace. :(

To make matters even worse, the other day I was running my game and the
entire system, shut itself off because it got to hot! :o

This is really confusing to my why this would be occuring because it has never happened before, and RPG maker 2000, is not really a resource intensive program. I mean I've ran it on much older machines than my own. ???

Does anyone have any ideas or suggestions on why this might be occuring?