Call of Duty 2 doesn't start (alpha blending error)?

when i try to run my call of duty 2 i see a message that tells me to set optimal settings (yes or no ) it doesn't matters what i choose because after i choose one of this it shows to me another window where it says : Error during initialization:Video Card or Driver doesn't support alpha blending.... My... show more when i try to run my call of duty 2 i see a message that tells me to set optimal settings
(yes or no ) it doesn't matters what i choose because after i choose one of this it shows to me another window where it says : Error during initialization:Video Card or Driver doesn't support alpha blending....
My video card is SiS 651_661FX_741_760_760GX_M661FX_M661MX_M7... can any body help me ?????????????please!!!!!!!!!!!!!!!!!!!!!...
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