Thanks for testing, Tom. Now we know that snd-powermac is currently the best choice for a PowerMac G4 (digital audio). Next question is: how to make it load on boot, and not snd-aoa? I installed Squeeze (2010-11-29) on my PowerMac G3 (B&W), and the installer forced loading of snd-powermac by adding it to /etc/modules. Could the same be done for G4 DA? Risto