I just purchased a Keylab 61and ordered it directly from Arturia in France. Straight out of the box, hooked it up, registered, installed, and followed all instructions. Top octave of keyboard doesn't work at all no matter what I try. Even upgraded firmware to 1.33, turned on and off, restarted everything possible, all to no avail. I have tried contacting tech support, but to no avail so far. any suggestions. I like the layout, and for the most part functionality of the unit, but if I can't rely on it, I need to return it, and I don't even know how to go about that.