Sims 2 DirectX 9.0C error! Won't play

Sims 2 apartment life worked fine last week, but when i tried playing it today a pop up keeps comming and it says
"Failed to find any DirectX 9.0c compatible graphis adapters in this system! Pleas emake sure you have a DirectX 9.0c compatiple graphics adapter and have installed the drivers provided by the manufacturer. The application will now terminate"
How do i fix this??? i tried a whole bunch of stuff i read online but it didn't work! Help!!
 
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