I just reloaded windows 98 back on computer, after formating and partitioning hard drive. now my screen resolution wont go higher than640x480. I have windows xp on seperate partition and the resolution while in xp is fine. when i check the properties of the adapters/drivers, they are different. setup says my display is for a ati radeon mobility but i cant find a adapter/driver that will work in 98.

You have to install your video card drivers. go to www.ati.com and select the "Drivers and Downloads". You should be able to find a copy there. If not, go to www.driverguide.com and sign up. It is free and offers thousands of drivers. You will find it there if nothing else.