i've tried the rotary in the menu-mode, and sometimes the items change to right when i turned the knob left, so i think, it's really the hardware.
how long was the warranty? 6 or 12 month?

Thomas

MK2 blue/red 12GB #090000815
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cheers, Thomas new owner of the MK1 00123 MK2 12GB 090000815 (my first one) MK2a 040103735 (from 303) and ???