A bit more info If I unload the jack sink and source modules before killing jackd, PA doesn't crash., there's a problem on the timing on my script that the modules look like the modules aren't unloaded before jackd shuts down,,, more sleep time. But still a problem if PA crashes due to the above, it either will not start again or starts and immediately stops, repeated cycle. I've tried renaming .pulse while PA is not starting, with no effect, it looks like PA reads the config data in .pulse and remembers it. So once that gets in a mess it cant be changed. TIA -- -- Best wishes / 73 Richard Bown e-mail: richard at g8jvm.com Mail now hosted by SimplyMailSolutions Please avoid using old e-mail address of richard.bown at blueyonder.co.uk nil carborundum a illegitemis ################################################################################## Ham Call G8JVM . OS Fedora FC17 x86_64 on a Dell Insiron N5030 laptop Maidenhead QRA: IO82SP38, LAT. 52 39.720' N LONG. 2 28.171 W ( degs+mins ) QRV VHF 6mtrs 200W, 4 mtrs 150W, 2mtrs 350W, 70cms 200W Microwave 23 cms 140W, 13 cms 100W, 6 cms 0W & 3cms 5W ##################################################################################