the master volume slider is stuck at zero and i can move all the other sliders but not the master so im stuck with no sound.

I realize this is a very old post, but I just wanted to say I tried the game a few minutes ago and the slider did appear to be stuck. However, clicking on the slider still adjusted the volume, just the sprite wouldn't change to represent this. It always looked to be stuck at no sound. I have no idea if this game has been updated since you posted this, but I can confirm I'm getting sound at least.