Yerp. It seems many mac users are experiencing problems with crashing. I'm no different. It doesn't seem to crash much on multiplayer (but it freezes on "downloading file manifest a lot) and my game will usually be running smoothy and then I'll do something like turn on my light, kill a bot, die, blow something up or whatever and it will freeze, and crash. It didn't do this at all before the v19 update. Help meeeeester Badspot man! Use the update!