signing on

hello when i sign on i double click my mouse on user name box. then my user name comes up, and some other names. how do i remove those other user names from this sites user name box???????

Just scroll down to the names, and press Delete. It's a setting in your Browser to remember logins.

That sounds like the "username Drop-down list" that Internet Explorer has. It knows you used those other usernames in the past, and is giving you the option to use them in any username field. Just highlight or double-click the username you want to use, and hit the Enter key.