Greetings WIT
There are a number of places for a command
to automatical start and run a command.
Since you want to run a gui program
I would use the KDE desktop autostart feature.
Open the home folder, click on View
and select Show Hidden Files.
The folder you want is:
/home/knoppix/.kde/Autostart
A executable script here runs when
the desktop is set up after boot.
If you can figure out how to get it on
the CD or DVD it will run hands free
when the computer starts.
You will need to look at many of
the documentations and posts on this forum.
Best Wishes
paradocs