Hi Rishi. I am interested in testing your app on a MacBookPro. Although you have developed and tested it on Windows, please understand that there is a growing number of Mac users, particularly in the middle and high schools in my area. I assumed since it is written in Java it should run under Java on any OS but I have encountered a problem even to launch it. If you (or any Mac user) has a suggestion on the steps involved in launching this binary please respond.