Playing on 360 downloaded it from xbox live to hdd. played through to the point where you get beaten up by thugs after following the kid to a street party. I talked to the ex cop and when it loads the next bit it throws me back to a checkpoint in chapter 6? I played it through again from there and it wont save from any further from that checkpoint it always says that that is where my last save is and the continue game starts me there. i got so fed up with it. it takes so long to get back to ch 7 again just to find out it still wont work. I had to stop playing... i dont want to start the game from beginning again. if there is no solution i wont bother with the rest ill just uninstall it. any one had similar problem and have a fix?