Make Dell Latitude D830 video card work with Directx 9.0

Make Dell Latitude D830 video card work with Directx 9.0

I recently updated to Windows 7 64-bit from XP on my Dell Latitude D830. Now I am not able to watch dvd's because it says the video card does not support DirectX 9.0. Is there an easy way to fix this or do I have to find a new video card?