Sounds like for starters, you need to figure out if your video card is ATI (Radeon) or nVidia (GeForce) based, and download the drivers from them. See if that doesn't resolve things.
If not, come back and give info on any other symptoms that may have cropped up since.
I'm asking this for a friend.....
He's been having freeze ups and other problems and thought at the time it was because of a recent Norton's System Works program download, however, after going through much help from them and other sources, the problems have remained after doing a complete uninstall of Norton's.
This is what he's told me and if it's vague and more information is needed, I'll contact him.
the cause of the freezes it turns out wasnt the nortons..as the nortons is gone..all tests indicate the programs and etc is working well..but looking on the dxdiag screen on the display screen..it notes my video driver installed is generic and neeeds to be updated..but there are no options to do that there..it also says DIRECT3D driver is not the updated version..but again..no options there to do it...i went to control panel/system/device manager and in video codecs it said x|_x263dec.dll, and x|_vv12.dll were not complete and needed a driver...but again no options for doing that and i havent a clue where to or how to fix it..
If any one can direct him for a fix on this, it will be greatly appreciated.