I have the same problem, so you are not the only one.
My game crashes randomly too.
It crashes seldomly when i enter a new map, but the game crashes very often when i want to load or save a game.
When it crashes while i am saving, the save game is corrupted so i always save to two different files.
But strangely enough the longer i play the game the less it crashes.
When i just begin to play the game crashes within 5 minutes.
Then i restart the game and after a few minutes it crashes again while i am loading or saving the game.
After three of four crashes, i can play the game for three hours before it chrashes again
