SiS have released a new AGP driver. This time its version 1.13 WHQL for the following chipsets:

SiS648, SiS645DX, SiS645, SiS651, SiS650, SiS745, SiS740, SiS735, SiS733, SiS635, SiS633, SiS730 and SiS630

Download SiS AGP Driver 1.13 WHQL