Ok, I just purchased a Line 6 FBV Express foot controller and no manual came in the box. I figured out the ethernet connection and channel switching thing quickly enough, but I have two problems I was hoping someone would help me answer?

1) I can't switch from volume to wah. I have been stuck on volume since I got the thing.

2) I can't hook up my other effects pedals without getting this nasty squeaking sound. Is there some sort of manual calibration require?

Any help would be extremely appreciated. Thanks