Disklavier

Hi everyone, 

This is my first post. Ive got a question about using the Disklavier as an input device for my Sibelius music notation software, for which i am using a Macbook Pro. 

Ive used it for about a year now, and frequently have to reboot everything because it stops reading the input and freezes up, requiring me to input everything by hand. Sure great to be able to compose AND notate on the grand, so I kept at it despite the glitches. 

I just added my Clavinova to the studio and tried to connect it to the Sibelius. No Success. Strange. Now, not only wont Sib read the Clavinova, but when I went back to the Disklavier it wont recognize the Disklavier at ALL. 

Any insights out there?

Best regards, 

Lynda