I tried right clicking both Act 1 and full version and then Show Package Contents and it seems they have differing folder structure and contents. I was wondering if this is the cause of the full version not opening? The contents of Act 1 is the one top and full version is the one at the bottom.

EDIT:
Okay, so I just finished playing through Act 1. Now I really need to play the full version.


EDIT 2:
I think I figured out the problem. It seems the full version was built for 64-bit OS. The one I'm using is 32-bit. Changing to 64-bit fixed the problem!
