Crashing problem...PLEASE HELP!

[lilbabimac]

hello everyone. i seem to have a crashing problem while playing counter-strike source. i'm running on a ati 9600 mobility and have updated my drivers with the newest omega drivers over at www.omegadrivers.com...i was wondering if anyone could help me and have any idea what the problem might be. i don't know if it is a vid card problem, or something else. help would be greatly appreciated. thanks!