FIND DRIVER VERSION:
Right-click on desktop, select properties from the menu, Select "Display settings" tab, select advanced button.
Your system may differ slightly here depending on the video driver installed. On my system it is the following.
Select the "Adapter tab" then select "properties" button, then "drivers" tab.
Should be listed on this screen.
DOWNLOAD NEW DRIVER:
To get the latest driver, go to the company web site that makes your video card. Search the site for "driver download", "support", something like that. There should be a list or selection there by product. Find your card and look to see if there is a newer version for your driver. Download it and install if there is.