Tony, I have a Kn70000 and a IBM Think Pad, it is about five years old. I use only the programs needed to run midi, word and a few more things in the laptop. I do not use midi between the laptop and the keybopard.
The audio from the laptop goes into an EQ, then to the imput of the keybpard. Sometimes I use an EQ and a BBE to get a more realistic sound.

My laptop plays midis,displays lyrics with a word program and displays music notation with an Encore program.
I play wave files and midies form my laptop, Technics Sequences and audio files from the Kn7000. And sometimes I get mixed-up. Ha
I use the VanBasco midi program (Free download) it's great.

John C.

PS, I don't think it makes any difference using a KN6000.

[This message has been edited by bruno123 (edited 11-04-2005).]