[A6] problem with amp env graphic display

[Luca Lazzaroni]

hello everybody, i'm not sure if this thing has already been pointed 
out before, since i'm almost a new member of the a6 mailing list. 
anyway, does anyone know a way to solve the fact that on the A6 if you 
turn a knob in the env sections (all the three lines of knobs on the 
right of the A6), nothing happens in the display, except for the 
"sustain" level? the other pass from bottom to the top without letting 
you see the middle values. Any idea can be very appreciated, it's 
really incredible that a synth that costs more than 2000€ has this 
problem.

byez

Luca