Random Crashing

ill be playing a game and at anytime it would crash, I cant even go back to windows. Its just frozen, I have to restart and play the game again...
sometimes this happens, sometimes it doesnt.
what do I do?


graphics card: ATI Radeon 9550 AGP 256 MB

thanks

did this just start happening or for awhile??? also, have u tried different drivers???

what kind of drivers should I get?
maybe I dont have the ones I need or something

same problem with mine!! same graphics card except mine is 128 mb. i got DNA drivers. (tried catalyst too)