I'm not sure if i spelled it right, but the mission in assassins creed 2 where you have to drive the carriage with Leonardo in it is where I'm having the problem. When guards get to the front and grab you, it says to push Shift repeatedly to throw them off. But no matter how fast i hit Shift, nothing happens, and I'm thrown off and have to restart. Please help, I really want to continue. Also I'm not the only person to have this problem, so I don't know if its been solved before, if it was, I couldn't find it.