Fun game but keeps freezing up.

This is my second version of Railroad Story. The first version had "freezing up" issues after I installed Mountian Lion last month. This version was supposed to correct the freezing issue but Im finding it still exixts with this version. A fix is needed. Otherwise I find the game rather thought provoking and entertaining. I like to challange my previous times on completed missions trying to find quicker routs / switching etc. Once fixed this is a good game.

adesjard about Railroad Story - Train Simulator