Here's an interesting quote:

"I was previously using the 1.13 AGP driver (7.2.0.1130 - 10/31/02). Indeed, installing the new AGP 1.14 actually reverts the AGP driver back to the AGP 1.12 revision level (7.1.12.3 9/26/02)! "


Thanks to... an anonymous reader for this:

"I checked it out and it is true. Furthermore, the driver refuses to enable AGP8x, it only wants to do 4x."


Direct link: SiS AGP 1.14 & AGP8x ???