I used to have Jack Server working with 10.10, 11.04, 11.10 but not 12.04 and now 12.10.

I have installed jackd jackd2 qjackctl surfed many forums and even given advice of how to get jack working, but now I am stuck.

Tue Nov 27 22:30:46 2012: Saving settings to "/home/shane/.config/jack/conf.xml" ...
22:31:19.960 D-BUS: JACK server could not be started. Sorry
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
Tue Nov 27 22:31:19 2012: Starting jack server...
Tue Nov 27 22:31:19 2012: JACK server starting in realtime mode with priority 10
Tue Nov 27 22:31:19 2012: [1m[31mERROR: cannot register object path "/org/freedesktop/ReserveDevice1/Audio0": A handler is already registered for /org/freedesktop/ReserveDevice1/Audio0[0m
Tue Nov 27 22:31:19 2012: [1m[31mERROR: Failed to acquire device name : Audio0 error : A handler is already registered for /org/freedesktop/ReserveDevice1/Audio0[0m
Tue Nov 27 22:31:19 2012: [1m[31mERROR: Audio device hw:0,0 cannot be acquired...[0m
Tue Nov 27 22:31:19 2012: [1m[31mERROR: Cannot initialize driver[0m
Tue Nov 27 22:31:19 2012: [1m[31mERROR: JackServer::Open failed with -1[0m
Tue Nov 27 22:31:19 2012: [1m[31mERROR: Failed to open server[0m
Tue Nov 27 22:31:21 2012: Saving settings to "/home/shane/.config/jack/conf.xml" ...
22:31:22.047 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started

Can anyone assist?