I have 7.3.x version of protools and Logic 8 running fine on my system (HD3, Dual 2ghz 4gb ram). No problems with coreaudio or indeed anything at all except the usual esb distortion thing from time to time. Jim On Oct 11, 2007, at 1:06 AM, David Frank wrote: > > Any one confirm whether it will work on PPC machines? I had seen > > several early posts on Blue Lounge and some other forums saying TDM > > systems were working OK with Logic 8 on PPC machines, but PT 7.4 > > would be required on Intel machines. I dug through a bunch of posts > > last night on the Apple Logic 8 discussion forums and a couple > people > > said that had not been able to get it running reliably on PPC > > machines either. One contacted Apple tech support (for what that's > > worth) and was told you absolutely need PT 7.4 installed (hello..... > > where is it?) to run Logic 8 on HD systems on all machines. Now I am > > confused.