Disklavier

So I got this message from a customer recently, and I honestly do not have much experience messing around with the smart pianosoft function of the disklavier. Anyone have any ideas? 
My first thought was to go and change a setting in the "audio I/O" settings from the setup menu. Otherwise, I'm not too sure. ...


After we did the calibration using the DKC-55 box we have been testing the
Smart Pianosoft disk performance with the piano playing its accompanying
audio cd.  It seems that the piano is slightly ahead of the audio CD after
the calibration.  Could this have something to do with us not being able to
calibrate it with the DKC-850 box and having to use the old box? 


Thanks!
Michael