> If I set Jack parameters in Qjackctl any lower than 1024 I get Xrun > mayhem. (at 44100) I have also tried this running from consoles as root > and it does not seem to make much difference. Am I expecting too much? Do you have /tmp mounted in ram? If not, add this to /etc/fstab and reboot: none /tmp/jack tmpfs defaults 0 0 Austin I had "none /tmp ramfs defaults 0 0". It was shown this way on Thacs website I think. But an error would pop up on boot. I just added the lines you suggested without the /jack directory. Version of Jack I'm using places files in "/tmp". No "/tmp/jack" there. Will see if any improvement. thanks