Well, it was surely my error, but I was about 5 hrs into a decent session and was in the home stretches and I must have hit the wrong keystroke combination. Without a pop up warning or anything I was transported out of my session and sent to the select session to resume session screen. I am not sure what keystroke I hit but I'm thinking it was Alt-R. I left the game in anger.... I was hoping some kind soul would tell me it'll be OK and I can resume it by turning my hat backwards or something.  Long story short, I've learned (again) to save games in progress... Was it a bug or is there a keystroke designed to pop you out of a game so abruptly?
				
			