Moving my single-player game progress between computers. A few months ago I completed a game on an old Windows PC. Recently, I acquired a new PC, and had to un

Moving my single-player game progress between computers. A few months ago I completed a game on an old Windows PC. Recently, I acquired a new PC, and had to unlock all the levels of the game again by playing through the game from beginning to end. It's just a minor inconvenience, so it doesn't really "piss me off"; it is just something that would be nice to have.