Hi Matthias, On Dec 29, 2006, at 2:36 AM, Matthias Frank wrote: > a short question: which is the last version of Logic running stable > with a digidesign Mix System (PT 6.4.) on OS X? 7.1.1. > I am thinking about > doing the jump from a good running OS 9 to OS 10.3.9. Is this clever? Digi didn't aprove anything higher than 10.3.4. However many of us work on 10.3.9 without a single problem. I guess I'd stay away from upgrading Quicktime from 6.5.2 if I had a choice though... Best, Andy