First, excuse me but i am french, so i won't speak always clearly.
I have got a similar problem, i am on an "old" MacIntosh, the "e-mac". I have got all the system requirements for a minimum install (only my graphic card (Geforce 2 MX) is not in recommended requirements) but the GhZ. I only have 800 MhZ. I tried at the end of august to install this game. I had problems, and so I gave up. Today, I tried again, and all worked... until the loading of GUI, then the game stops and leave. I think that the problem comes from the only 800 MhZ, and so I advise you to check up the power of your macbook...
Maybe will it help... I hope so.