That\'s normally due to an issue with sound.
Yes, in this release (.13) having sound turned off has some issues, one of them, a crash whenever the window screen is minimized.
Workarounds:
1) Enable sound
2) Play fullscreen so you don\'t commit the \"error\" of minimizing the window
Resolution:
Since few days after the .13 release, AryHann corrected the issue that was causing the crash. As soon as the update goes out \"officially\" everyone will have this problem solved. You\'ve also the way of using CVS to compile the code and get it working but, really, the solution consists in an update acting as a bugfix for this issue. I think it\'s planned, so you\'ll have to wait less than usual
