Disklavier

Allan,

Sorry I've been so wordy,  but I found some other information.

Yamaha has a special "To Host" cable (Part number CCIBM).  They may 
have some special wiring for their devices.  You may want to get this 
cable instead of the null modem.

If this is the cable you already have, have you installed Yamaha's 
serial port driver?  You can find it here:

http://www.yamaha.com/yamahavgn/CDA/KnowledgeBase/KnowledgeBaseDetail/
0,6401,CTID%253D500866%2526CNTID%253D21006%2526VNM%253DLIVE%2526LGFL%
253DN%2526AFLG%253DY,00.html


Note, if that link doesn't work simply go to yamaha.com select search 
(way down at the bottom) and search for CBX driver.

good luck again.  I promise no more posts unless you ask again (ha ha)

Brian