jeez, i thought macs were supposed to be easier... anyways, glad you got it working!
Just to re-iterate... I had no such problem with the 1.1 download.
There must be an executable/permissions flag that got missed on your 1.2 Mac build.
This might be the problem?
FYI:"Go to your Player Settings (from the build settings menu), and ensure that Mac App Store Validation is turned off - otherwise it won't play unless the game is bought from the App Store."
Thanks, i will look into it right away