Welcome to Linux Questions!
That driver should be included with your X windows installation. You can check to see if it is running by going to /etc/X11/xorg.conf and looking for the line that contains the video card. Should look like something below.
Identifier "Name of Monitor"
Option "XVideo" "On"
Option "DevicePresence" "On"
I found this by doing a google search for xorg.conf and the name of your video card it brought me to another LQ posting link is here http://www.linuxquestions.org/questi...aphics-393687/