I downloaded the newest version for Mac, and every time I attempt to open it, a pop-up appears, and gives me the options of relaunching, or ignoring it.
I don't know. I am having the same problem. What OS are you running? you can check this by clicking the apple in the top left hand corner of the screen, an clicking about this mac. I am running version 10.5.8 If anyone has the answer, please post it. Right now i am using Wine to run The Powder Toy. You can download it here. but you will have to download the windows exe powder toy files in the link below.