I must admit my Asus drivers are in Add/remove but I know little of such things.
To update drivers I would either go to the manufacturers site, identify my graphics card and either do an automatic update (if available) or download the identified file(s) and update off-line. You can always check which drivers you have in Device Manager ( right click My Computer/Properties/Hardware tab/Device Manager) select the device and double click. Select the driver tab and details are shown. You can also carry out other actions here.
You could also Google the problem and see what you get. I Googled `install remove drivers in xp` and got these click here there maybe something that will help.