Greetings softgun,

If you use KDE then the gui way to start things at
boot up is to put a link or script in the folder:
/home/knoppix/.kde/Autostart

I am sure you know that .kde is a hidden file
and you have to click on view and show hidden
to see it.

Also remember that the script may need to have
sudo at the beginning a a line to start
the process as root.

There are other places in the root directories
that are run at boot up -- but we will see what
others have to say.

Best Wishes
paradocs