I have a customer who is having trouble installing one of my problems on his MAC. I don't understand all the issues involved to help him personaly. I am asking that he post his particular question on this this thread under my post so we can help him with his problem. Not being a MAC user myself, I am curious to know my self what MAC users must do to use Rosity products. By the way, my product is a zip file that contains a runtime folder and several sub-folders, each containing the files that are needed. With PC, its a simple task of copying the runtime folder over to the poser folder. What do MAC users have to do? thank you marty