I just bought GTA4 for my Late 2008 MacBook Pro (Specs Below) yesterday. It finally finished downloading, and when I launch it, it freezes my computer. "Hmm..," I say, but then I force shut it down and restart. I launch it again, and it freezes instantly like it did before. All the drivers are updated, and I'm using Bootcamp running Windows 7 64bit. I searched and saw that others were playing just fine. Was there something I need to install first? I believe Steam pushed the updates to the game already before I even downloaded it.