I have a msn email address that will sign in on computer #1 through MSN Explorer but it will not sign on in Windows Live Messenger..... Now the thing is that the explorer has 2 other users on it but unlike the the first email they will sign it both explorer and messenger... To see if it was the messenger having a problem i logged out of the main user and logged in as another user on the computer and tested the email address with the messenger and it signs it..... And one other thing i tested to see if it worked on another computer and it worked... I have reinstalled both messenger and explorer and it does not fix the problem.... If anyone know anything that might help i would appreciate it.. oh just to let you know i am runing WLM 8.0 and msn 5.something.... Pleaz help.....