Unable to startup 3D acceleration

I just updated my graphics driver and now I get message saying "World of Warcraft was unable to start up 3D acceleration."
My graphics card is:
NVIDIA GeForce 9500M GS
Vista 32-bit OS
 
Please uninstall your currently installed nVidia drivers, then download Driver Sweeper or Driver Cleaner Pro.

Reboot your system, and re-install the latest WHQL nVidia drivers. Regards
 
Back