The best thing you can do in cases like this is to send the crash log to firstname.lastname@example.org along with a thorough description of the crash, including any error messages. This will enable us to investigate the problem further and help you accordingly.
When the game crashes, you will receive a pop-up window detailing the crash. From the pop-up you can open up the crash report by clicking the "Report…" button. Please take a copy of the whole report and send us a message containing information on what you were doing when the game crashed and attach the crash log (preferably as a separate file).