Well, he did say nVidia audio and ethernet.
I assume you have an nForce, jeeptak?
One of the most common problems is that the module auto-loading is not working. One workaround that people have found is to change all of the sound-slot-1 references in /etc/modules.conf to sound-slot-0.
If you can't seem to get the module to autoload, you can try loading it manually with the command: "modprobe nvaudio"
You can insert this command into the file /etc/rc.d/rc.local to have it execute each startup.