I started my own topic, but I'd just like to add that I installed 1.0.67.0 direct from Steam, having no previous versions of the game on my Mac, and it won't even launch. I get stuck at this screen and it won't go any further, I have to force quit the process just to get rid of it. Verifying local game cache in Steam reports back as all files verified. The game won't even launch. Can't remember the last time this even happened on a full retail game, on PC or Mac.