Thank you atakker! I really appreciate the assist, as I haven't had a proper opportunity to look into a real fix.
Basically the problem is that When you build a Mac version on PC the accessibility settings are all set wrong. It's a known problem and just another example of an easy problem to fix that Unity has know about for years and just not done anything about. There are solutions to this problem, I've just been stuck in travel-limbo trying to get home to my country and not had a great opportunity to sit down and fix it.