New Nvidia nForce system drivers available on the MSI site (LiveUpdate), v3.75 for Win9x/Me.

This nForce Win9x driver package contains the below components:

Audio driver 3.62 (WHQL)
Audio utilities 3.62
Ethernet driver 3.13 (WHQL)
GART driver 3.34 (WHQL)
Memory controller driver 3.38 (WHQL)
SMBus driver 3.38 (WHQL)
Installer 3.42

Download: at Hardwareoc.hu