A progress bar tells you that a game has reached say 3% loading and then an error message appears 'Some Files Were Missing' telling you to check the Window Log for more help. The second problem however is that many of the games fail to load. By default you open MAME OS X on Good but if you switch to All, you'll see all of the games available. There are three tabs at the top of the main window - All, Good and Favorites. The problem is that the audit button is clouded for some reason meaning you can't click it even if you want to. When MAME OS X initializes, it tells you that you must 'Audit' to populate the list. There are literally hundreds of games to choose from but the problem is finding one that actually works.
