Update video drivers in Windows
First determine what type of video card you have. To do this:
Click START
Click RUN
In the box type DXDIAG Click OK. This will bring up the DirectX
Diagnostic Tool
When the tool finishes loading, click the DISAPLAY tab.
In the Device section, next to Name is the name of your video card. The
Manufacturer is the company that manufactured your video card. To find the
latest driver go to the manufacturer's web site. They should have a support
section or a driver section where you can find the drivers for the device
listed in DXDIAG.
Some of the main video card manufacturer’s include
Nvidia www.nvidia.com
ATI www.ati.com
Follow the instructions on the manufacturer's web site to download and
install the latest drivers. If you can't find a driver or the manufacturer's
site, refer to the documentation that came with the video card hardware or your
computer for support.