So… As I've said before…. I never fix a bug "right" the first time. This time if your game is broken it should detect it and reset it. This is due to some bug using the smallest resolution with the unity standalone player.

Its… A stupid, simple fix but those are usually the best. If you are using the smallest resolution it will force the game menu to load full screen resolution every time the menu is loaded. This assures the bug is fixed, even while playing.