C3 audio problem

I think everyone is familiar with the Ubuntu problem. I played wit many settings and eventually was able to record and playback, but both recorded and imported files were heavily distorted.

Yesterday I switched back to Angstrom and playback of an imported file was perfect in the headphones though not very loud, so I made some changes using alsamixer - now no audio.

Where does alsamixer save settings? /etc/asound.state is dated 2009-06-11 so that hasn't changed.
I'd also appreciate a copy of a working mixer config.
I don't have amixer installed, I have alsactl.
Regards
Sid.