Patrick, two links for good advice with the RME HDSP card: Linux Journal: Using the Hammerfal HDSP on Linux by Peter Todd http://www.linuxjournal.com/article.php?sid=7024&mode=thread&order=0 Installing and using a rme hammerfall dsp with linux by Dieb13: http://pd.klingt.org/files/hdsp-howto.html best, d.