why wont msn let me sign in?

every time i try and sign in to msn it says 'sorry, we were unable to sign you in to the MSN Messenger at this time. please try again later. 80072ee7' it has been doin this for about a week. ive tried uninstalling it and re installing it but it just says the same. ive even gone on the help button and done what it said but it still says the same.
please help!!!!
laurie, July 2005


done
mine is doin the same and i dont know whats wrong with it!!!!!please help someone

dani, September 2005
have you got an internet firewall, like McAfee, Norton or ZoneAlarm? If so, allow the program "msn messenger" as it could be being blocked

Craig, September 2005