barton smith - 2005-11-09

I'm trying to use mpg321 as part of Gjukebox on a Ubuntu system.  I have a built in sound card (VIA) and a pci Sound Blaster (Ectiva?).  I get no sound from mpg321 from either card.  I have no idea how to control which one it tries to use.  I get sound from the Sound Blaster using the CD player and Music Player that come with Ubuntu.  Can anyone help?