Ok, as it looked as a corrupted file I removed the folder MyGames and the game works again.

I guess that if I wanted to restore the saved files would be enough to put back the folder MyGames/BBCBA/SAVES, wouldn't it?

Hi I've downloaded the game a few days ago and started playing happily. But today the game refuses to advance further out of the start up screen. I see the small black window with the modal window where you can select shadows mode and full screen, but when I click the accept button nothing happens. ...