Here's a fun, peculiar issue that has recently arisen with my game:

I recently reinstalled Sins (multiplayer compatibility issues), and updated to 1.09, and now the game will not save any achievements.  Whenever the game is closed, they all reset.  If I reload a game, it awards any achievements I may qualify for (such as Fleet Diversification, Export Maven, etc.) and saves them for the duration of the session, but they all go away again when I close the game.  This has not happened on the exact same machine with the exact same configuration when I was previously running 1.09... anyone heard of this happening / have any theories on it?

It's obviously not a playability issue, it's just odd and sort of disheartening (I'm a bit of an achievement-junkie... thanks xbox).