Yeh the backlight works.
I've looked and there's no datasheet or anything that might hint as to how it works. It was problem designed by them in house hence why there's no info anywhere.
From the looks of it, the programmer just sends data through the VGA connector, so if someone were to analyse the signals coming out of it, surely using some relatively simple circuitry we could replicate that signal and be able to program the controllers without the programmer?
Unfortunately I don't have the capabilities (or knowledge) to even attempt something like that.
Oh well, it was a long shot, I would have been surprised if someone had done this
The reason I said an Arduino was because I have one and its very easy to get a simple project going.
Thanks anyway, I'll just get a new board. They seem pretty cheap and I might even be able to get one with a DVI connector.