Video card compatibility

[VMF/214_HAMMER]

I have a EVGA GT520 2gb graphic card and it seems that it can't or won't support Dover....

when i enter a server i do not have a map to see and if i try to launch in single player i have the same and it toss's me to destop but i can hear the great sounds of the planes......

i have updated the drivers to the latest
lowered all the settings
and have had 12_strings fiddle with a couple of other things

any suggestions are welcome
thank you gentlemen

HAMMER

ASUS MOTHERBOARD
AMD FX 4200
8GB CORSAIR MEMORY
680 li POWER SUPPLY