Unable to use Aero Effects

Hi,

I had recently updated win7. I am unable to use Aero effects

Error message is :

"
The current video card may support Aero with a driver that is compliant with the Windows Display Driver Model (WDDM). Contact the manufacturer of your computer or video card for a WDDM-compatible driver."

Can somebody help me to update WDDM compatible driver

You gave us absolutely no information with which we could help you update any drivers at all. It's possible your hardware cannot handle it. Tell us the Make/Model of your computer and the make/model or your video card so we can look it up.