[Sonic Blue Meanie]

I've got some multi tracked drums that I have made a group out of for doing some Elastic Time work on. I must have accidently hit a button that has locked them to their current fader position. More simply put, when I adjust the volume on the fader, they snap right back to where the fader was originally when I let go of the fader bar.

How do I regain control of my faders?