Ok, so I recently got Sims 3 at my local Target. On the cover, it says that it is capable for the PC and Mac. I have a Macbook Pro that meets all the requirements for the game. Whenever I put in the disk, it says that I need to have Windows for the game, when on the cover, it clearly shows that it works for both Windows and Mac. I don't want to download anything to run it; it should be able to run on it's own. So why isn't it?