Thanks for answering so quickly.
Based in what you wrote then I think it was my computer that froze not the game.
I understand what you say about saving. No problem. Maybe it was evident to everyone that the game saves the progress only at the end of day but it was not to me.
Similar to that (not been evident to me) I thought nothing in town was part of the game now, but later I was walking around and saw some parts are available. And the quest button been white (or gray, I don't remember) made me think that weren't available either. But I think that's just me.
I really like the game. Great work!