Attention: The Mac (OS X) version of this program mutes the background music during the processing of the AI opponents' turns. This is by design to eliminate a sound stuttering problem that occurs during intensive mathematical operations. Please be sure and try the game demo before purchase. Both the Demo and the Full Game are packaged into .sitx Stuffit files.
Please make sure that your stuffit program is up to date to ensure that the data is not corrupted when it is unstuffed http://www.stuffit.com/mac/expander/