Same thing here. The game will only let me access save game 1. I have a save game 2 where I'm making all the opposite choices to see how the game goes and now can't access it.
edit.... for anyone looking at this. what worked for me is by replaying the last chapter. Once I replayed the last chapter I could again access the other save game files.
Last edited by Dagnabbit; 10/14/2012 at 12:09 pm.