Hello, After following the instructions in post #49 in this thread on Ubuntu forums: <a href="http://ubuntuforums.org/showthread.php?t=148467&page=5">http://ubuntuforums.org/showthread.php?t=148467&page=5 </a> I have lost all sound in Rosegarden, but I can both play back and record in Ardour.  As before, the Ozone keyboard does not show up as a MIDI client.  I am running Ubuntu Studio Gutsy on an AMD 64 machine with 1GB RAM.  It doesn't seem to make any difference whether I set the Ozone Academic as the default with asoundconf or not--I have installed asoundconf-gtk to make that easier. The device shows up in JACK (after having mysteriously disappeared for a couple of sessions) and I can play sound through it with non-JACK applications as well as Ardour. What should I do to get sound and MIDI working with this device in Rosegarden?  Is there any other information I could post for you to help diagnose the problem? Do you want to see the output of any command-line tools? The Academic is a fairly recent version of M-Audio's Ozone audio interface/keyboard that is part of the Pro-Tools Academic bundle.  It supposedly does not need a firmware load to run under Linux, unlike previous versions.  However, I loaded the firmware anyway, having read instructions for the older versions. The firmware page is located here: <a href="http://usb-midi-fw.sourceforge.net/">http://usb-midi-fw.sourceforge.net/</a> I'm happy to wait until after the holiday for an answer, OTOH it would be gift I could receive joyfully, if you want to play Santa. Peace, Paul in Seattle