Since the latest update I click play game and nothing happens. I click Play Game again and the game won't start saying "app already in use" or something like that. What happened? Are the developers fixing this? MAC OS X 10.6.8
I'm having the exact same issue! Mac OS 10.7.5. I did try to install the game on my Bootcamp Vista Drive and it worked just fine so at least I can still play but would rather play on the mac. I have the steam version and the War Child DLC.