Graphic Drivers

I have a 586 cyrix machine and it had win95 installed and the graphics was good. For some reasons I format the machine and installed the win98. Then the graphics got poor.(only 16 and 256 colors are there). I need Oak Technolgy Super VGA driver. (OTI 052-925602) Please let me know where I can download this driver. Or mail me the driver to raiz@mediasolv.com