HELP! I was jammin' along in Garage Band on my new MBP yesterday when, after deleting a track which had been set to Solo at that moment, all other tracks remained muted. Now the only way to get them playing is to set them all to Solo, but that's quite impractical. Has somebody a solution for this? My song wasn't that far advanced, so rebuilding wouldn't be a problem - just don't want to run into the same problem again.