Gigabyte released a CK343 driver package containing new AGP and SMBUS drivers :
DriverVer = 05/27/2003, 3.4.3 (both drivers)
-> Package contains older network and IDE-drivers - I recommend manual install of AGP/SMBUS drivers only ! Grab the drivers here : Win98/ME - Win2000 - WinXP
Edit:it's possible Network drivers are 3.4.3,too but using older .INF files (I have no nForce board to check this)