My DP G4 ran all the demo files with no hitches or stalls and allowed me to add a vocal track. I think the critical item is RAM. Having 2 processors must help, though! A On 1/20/04 05:33, "Mac Pro Audio List" <MacProAudio at lists.themacintoshguy.com> did kindly say: > I'm not sure that your "Unable to continue" errors are due to lack of CPU > power, though on a G4/450 they might be. I get them on my G5 2x2 at times > with about six tracks. In my case my problem seems to be a lack of > available RAM. If I close out other stuff that sucks up a fair amount of > RAM I'm able to run it without difficulty. -- TRUTH Three things cannot long be hidden the sun, the moon, and the truth. Confucius