grafx driver help!

well i was doing some NF missions last night, and i got dont one. while loading the town a got a pop-up saying my grafx arnt doing something right.

well i went to the support site and found the problem i need to up-date my driver. now i need to know how to find what kind of grafx card i got, now can anyone tell me how i can find out what kind i got so i can up-date it?

Run dxdiag, that'll tell you what you have installed.

thanks that help me find the driver, now i gotta find a site to up-date it =/