Well I'm still playing Assasssin's creed 2 and now I am stuck. Somehow I either can't find my next mission that gets the story moving again or I failed the current mission and it just hasn't acknowledged it. I have had a glitch in the game before. Once I fell off a roof intoa plant on the side of the building and couldn't move! I kept trying to wiggle out and eventually fell through open space into a white area like when you are unsynched. The game was fine after a reset but that was a weird glitch. Anyway, I have gone to other guide websites and see that I am supposed to be in Tuscany and my next mission is on a roof somewhere. I look at the DNA sequence and it looks like I skipped a mission and went to the next one but I am not  sure how. I'm going to try to figure it out today. In the meantime, I am having fun wrecking havok throught he city from what I learned on youtube. I guess you can kill a bunch of civilians if you throwh money by a breakable structure and then make it collapse. LOL. I love throwing citizens down stairs and into the guards.