it seams i know the game wont run if its opened if the game it self is still in dmg when dmg file is mounted the perpouse of the dmg file on mac os x is like a zip or rar package file but on steroilds the main trick here is the main reson you guys cant get it to run is a mounted dmg file is read only meda like a thumb drive or cd or dvd you got to click and drag the game off the mounted dmg folder into anywere that the mac os can read and write data like in the app folder in order for the sistem to able to set up and save ufo ai config setings into the users libary folder thats why the build wont run its in a READ ONLY FOLDER