Noticed something weird. The game crashes on levels 1 and 2, randomly, whenever I walk too long. If stand in one place — or walk around in a small area — everything's good. Levels 3 and 4 are totally OK, regardless of how much I walk around. And I went down to levels 3 and 4 after I patched the game. Wonder if those things are related. Will keep testing, let you know if I discover something.