Ian, It's been a few years since I did this (and of course it was 2 jobs ago so I don't have any of the files), but you should be able to write a relatively simple launchd target for condor_master. This site should get you started: http://launchd.info/ Thanks, BC -- Ben Cotton Cycle Computing Better Answers. Faster. http://www.cyclecomputing.com twitter: @cyclecomputing