No luck getting fullscreen to work right, but I changed the resolution and set it to windowed, following the instructions and example in the windowed config.ini.
I also did some testing with another way to make a Mac version.
Download the PC version (I used the torrent).
Download the visionaire player here:
You must be registered to see the links
Right click on the player, "Show Package Contents". Open Contents/Resources.
Copy everything from the PC version to this folder, except the .dlls and the .exe.
Run the app.