There's no apparent issue with the packet-log. The game-log seems to suggest you're on Windows - XP, Vista, Windows 7, which one? - I don't like to do this, but it's so often a relief on Windows: have you tried to re-install the game!?!
Could you also please specify the error you said you get when you try to run the tutorial-demo!
Could you also please specify the error you said you get when you try to run the tutorial-demo!