I have a slight problem with my volume controls on a Macbook Pro. They're not doing exactly what I want them to. I have an external sound card and by selecting it as my default audio device the macbook pros own volume control gets locked and there's no way to adjust it. This means that it renders the keyboard and Remote control volume buttons useless and I still have to run across the room to adjust the volume on my audio device when I'm watching a movie through the tv away from the macbook. Is there no way to enable this function anyway so both controls work?