I'm using CS3 on a Mac. My current project marks the first time I've done any editing in almost thirty years. When I opened CS3 for the very first time and did a few trial edits, I was able to adjust audio on the three tracks as I played it back and the changes were saved. Now that I've finished my 21 minute project, I can't get the audio changes to hold. I've followed the isntruction in the help file and that I found online, but no matter what automation settings I use, the changes are gone when I play it back. THere were changes noted in the keyframe timeline for the first couple of minutes, but nothing after; now I've even managed to loose those changes. Any ideas??