Operating System: Windows 98 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
Insert a command string in "autoexec.bat" with the program name and location.
"This TSR program is for updating your 5598 VGA BIOS to newer version without reprogramming the EPROM. It provides better compatibility with SiS 5597/5598 V1.13 driver and is able to fix the fatal error problem in your windows 98 system while upgrading the vga driver to V1.13 or its later versions. (faq page) The using method only put it on C \ and add "597v113.exe" to autoexec.bat, it will update BIOS when system boot up."
Taken from SIS homepage.