phil_m, Thanks for the tip about sendsx. When attempting to upgrade to 2.0 using Midi-OX, the process failed with a 'format error'. And left my m13 unit in a bricked state. Cycling power returned to the waiting for upload message, but each time I tried to to this with Midi-OX same error. I installed sendsx, set the midi out accordingly, and as a result, I've upgraded to 2.04.