Andrew,
Welcome to the forum.
I have a KN7000 and a PR804 and just did a quick check to see if the PR804 would respond ok to the KN7000 programs on my laptop. It seemed to work fine.

There are three things on the CD ROM that you don't have. First, USB drivers. Second, Song Manager program that allows you to transfer Technics and MIDI files between instrument and computer.
Third, Recorder program that allows you to digitally record performances from the instrument to the computer hard drive using the USB connection. (This works great!)

My suggestion is that you obtain a copy of the KN7000 CD ROM and try it. Be careful to install the USB driver EXACTLY according the instructions!

If all else fails, let me know and I will copy my PR804 CD ROM for you. If you have a broadband connection, it may be practical to transmit through email. Otherwise, I can mail it to you.

Good luck and enjoy the piano.

Lanny

[This message has been edited by Lanny (edited 02-11-2005).]