Windows 98 is horrible for fixing video drivers once you have something bad in the files.... heres the cleanest way to install or re-install video drivers.
add/remove programs
make sure ATI control panel has been uninstalled completely
along with any ati display software listed
1) go to device manager
2) go to properties of your video card
3) update your driver
4) choose STANDARD VGA DRIVER from built in list
5) complete and restart system (you might have to hit cancel if it tries to detect on start up)
6) verify that ATI drivers are no longer listed in device manager
download these drivers
http://www2.ati.com/drivers/wme-7-99...4m-013831c.exe
thats a display driver only and still maintains WHQL certification for windows 98.. anything newer does not.
install display driver and reboot....try EQ