http://driver3.sis.com/graphic/integrated/650740/full/650_221_win98me.zip

Not Found
The requested URL /graphic/integrated/650740/full/650_221_win98me.zip was not found on this server.

Thanks for the note! Here you have an updated listing:

Sis 650/M650/651/M652/740 2.22 WHQL (Windows 2000/XP)
http://www.techspot.com/drivers/index/file/information/2578

SiS Graphics Driver v3.63a for 650/661/740/741/760
http://www.techspot.com/drivers/index/file/information/3636

The link that is broken is for the Windows 98 driver.
The 'update' you gave me is for the Windows XP driver.
We're running Windows 98; we needed the Windows 98 driver.
I installed the Windows XP driver from the CD-ROM
(by the way, drivers ought to refuse to install on the
wrong operating system) and if I turn acceleration down to
zero it seems to work. Hasn't crashed yet. But I have been
hunting for the Windows 98 drivers for this hardware.

The page is for the Windows 98 driver.
Clearly you ought to remove that page.
On that page is a link to click on if I find a broken link.
That's what I did. And got thrown into a public forum.
I hope Mr. Webmaster sees the post and fixes the page.