I have downloaded by the 77 and the 78 beta, and neither .dmg is recognized, and will not mount to install. I just finished downloading the .dmg for vlc player and google chrome, which tells me that my computer has the capability to mount .dmg's, however the powder toy .dmg's are not working. I have powder toy on my old laptop, which can hardly handle running it, and I love the game. I just got this new macbook as a gift, and would hate to not be able to play it, as I was looking forward to high speed play on a computer that could actually handle it. I look forward to your feedback.

anybody??