BleepingComputer.com: Blue Screen Error while playing games

Hi guys, after installing The Sim 3 and play it for a while, my computer crashed and the blue screen error pop up. I don't really know why this happen. I have a fine time playing other games like warcraft 3 and Civ4. My best guess is that my video card doesn't meet the game requirement, but when I run the Sim3 everything seems fine to me. I also downloaded another game, Unreal Tournament 2004, and the same blue screen error pop up everytime I play it for 5 mins or so. Could anybody give me some tips, or just tell me why I'm having this problem please, thank you.

It would be helpful if you were to tell us precisely what the error message was, and if the MESSAGE was the same for both games.
Thanks,
John