Word to the wise- as an emergency after a crash of an Elsa erazor x card at work, I bought a s3 savage4 agp with 32megs of mem. the card performed so poorly even with the latest drivers that I yanked it and dragged an old matrox g100 pci with a whopping 4 megs of memory out of the closet. The matrox out performed the s3 in every app. Now in win98 running a non openGL based game the S3 would kill the G100, but there was an openGL glitch in the S3 chipset that was never resolved.
Upgrade the vid driver. If that don't work, go to office max and buy an 8 meg pci card for 39.95 and put it in.