Aux In (via Return and Alternative In) changes the volumen with the level of the rig-volume (the knob nest to the headphonejack)
If i change the rigs while playing to an aux-in-signal, and the rigvolumenposition (leds) are different, the aux in volumen changes parallel to this level
please make the aux-in-volume lineary dependent to the mastervolumen
thanx
(or is there somthing i have overlook? 
)