Yeh it's trivial for normal use indeed. Maybe add this to your system requirements to prevent mishaps like these from happening to other people.

Wish you all a merry christmas and a happy new year.

Hello pk867,

Permission repairs does not solve anything, i, the user logged on, have full read/write permissions. Also the OS is new installed and clean.

First of al the file i mentioned is is the right place. The installation seem
Main location /Application/BA.app
Within this directory resides ...

Dear tech support,

I installed BA on a Macbook with OS X Lion on it, using filesystem with case sensitive enabled.
Now BA does not run, cannot find the file CONFIG/SYSTEM.TXT, actually this is called Config/system.txt on my filesystem. In past i had a filesystem without case sensitive, that worked ...