On booting into XP Home, the folowing warning message comes up: "System can't logon. Check user name and domain are correct." If the "OK" button is clicked on the warning box, it then allows the password to be typed in, and logs on. This error message occurs no matter what log on settings are chosen in User Accounts - with or without password required. And no matter whether the primary log on is set to administrator, user or visitor. Any help would be appreciated.