Hooray!
Thanks Paul, that did the trick. I guess I didn't know about that .ssh file
and breezed right by it. Wish the docs/FAQs on NoMachine's site were a
bit more explicit. I guess I can expect to go thru this whenever I have to reboot my Knoppix machine? I do have a permanent home HD partition,
is there a way to tell NXserver to store it's key there?

Thanks again. I can live with this solution if need be.

Jim G.