Reply to MF Pro Cue Master knob problem

Hiya,

Just received my Cue Master and it's brilliant, apart from one thing:

The detent/notch for one of the knobs is set at about "2 o-clock" instead of 12. I'm assuming the knob is just pushed on incorrectly. Are those knobs meant to pull off? They seem very firmly set in place....

Any suggestions?