I had the proaudio overlay, but I did not have jack installed. I have now installed jack and this is what happens if I run it: tux maudio # jack Traceback (most recent call last): File "/usr/bin/jack", line 42, in <module> import jack_argv File "/usr/lib64/python2.6/site-packages/jack_argv.py", line 22, in <module> import jack_utils File "/usr/lib64/python2.6/site-packages/jack_utils.py", line 26, in <module> import jack_functions File "/usr/lib64/python2.6/site-packages/jack_functions.py", line 222 def starts_with(str, with): ^ SyntaxError: invalid syntax I also installed qjackctl which seems to run independently from jack.