I've fully installed (and reinstalled) the D3 beta. As soon as I press "play" at the launcher my mac blackscreens and the only way out is to turn off my computer. So I never get to the menus or the game. Stuck at launcher. I haven't been able to find anyone else with this exact problem (read about macs blackscreening upon exiting game) or a solution to this problem. Can anyone help?