Hi, I'm new to Macs...bought a G5 powermac with os10.3.9. It had logic 6 with no dongle. So I bought a full version of logic 7 from ebay with dongle. when I tried loading the disk the disk was ejected after about 20secs. (Other disks are fine, music and other applications) The disk was ok on a friend's mac so he copied it to usb. Now is it better to try installing from usb stick or copying on to mac then installing? How??? :) I'm close to giving up and selling the lot! All I want is a solid recording platform!