I have a little song I made in Garagband 4. Some software tracks and some "Real" tracks. As the song is playing back, I can adjust the volume of each track seperately on the fly by using the volume knobs next to each track except fro the very first track I did, which is a vcaol track using a nice condenser mic into a M-Audio Fast track Pro....Any ideas? Is there a reason why I shouldn't be able to adjust this? Thanks.