The earliest NVidia card to support DirectX 9.0 is the GeForce 2 Ultra. If it IS a Geforce 4, he should be able to run it, although he'll have to turn off point sprites and anti-aliasing.
To update or re-install your video drivers:
1) go to www.nvidia.com and download the latest drivers for your card
2) Right click on your my computer icon and choose properties3) Click on the hardware tab4) Click on the Device Manager5) Select your video card under Display adapters and right click on it. Choose Uninstall.6) Reboot7) Cancel the Found New Hardware wizard when you log back into windows8) Install the drivers you downloaded (you may need to reboot again after installing them).
Also, here is a link to a driver removal tool in case more drastic measures are called for:
http://www.drivercleaner.net/
midgetbean, you definitely need to update your video drivers. Follow my instructions above, and also open up your Prefs.ini (My Documents\My Games\GalCiv2\Prefs.ini) and add these lines under video:
While you're there, set Multisample=0 (turns of anti-aliasing).
You'll have much better performance.
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