@badger99

Welcome to the forum, badger99.
You are in good hands with Professor Forester.

One additional thing you might want to try is to see if the lxrandr
program built-in to Knoppix 6.4 offers any help in your situation.

This program is accessible via the command line as simply lxrandr,
or via the LXDE main menu at Preferences/Monitor settings.
Mine gives me five settings, but it was ok on install, so I didn't need it.

I'm wondering if it'll be confused with TWO monitors.

Lots of luck, and let us know how it's going.