hello i still don't solve my midi problem with px privia 5s. I have opened a project without turning on the px 860, I have connected the px privia 5s through a midi card (midisport 4x4) connecting the midi out and the midi in to the card and the midi output of the card to the pc. I have loaded 4 tracks and I have recorded 4 tracks at the same time without problems (Midi 2,3,4,5), so far so good, the moment I turned on the px 860, (via midi and direct audio from the piano) it is When problems come, I don't record any tracks from the px 5s even with the tracks configured. I have written to technical support to explain the problem and they have not bothered to answer me, bad technical support. Can you give me an email address to get in touch with someone from casio who is willing to help me? I can not believe that I can not use two casio at the same time in my study, bad purchase, this could be advised before selling it