I have the 0.12.6 (alpha) game installed.
I think this may be related as we are both running the same OS.
Thanks a lot for a great game, I am really enjoying it.

This is my system,
Model Name: iMac Mid 2011
Model Identifier: iMac12,2
Processor Name: Intel Core i5
Processor Speed: 3.1 GHz
Number ...