I recently acquired the game Risk II for my MacBook Pro, as well as Monopoly and today, RailRoad Tycoon 3. Monopoly doesn't work at all on the MacBook, so I'm assuming it's a universal code issues. Risk II however, was working fine until yesterday, when the sound stopped working within the game itself (it still worked outside in the menu). Then I installed RR Tycoon 3 today and the sound didn't work on that either. I don't know if I somehow screwed up my sound settings or something, but I was curious as to if anyone knew how to fix it or had experienced this before. Since it worked at one point but not now makes me think it's fixable.