Dear bobbenjamin,

you could search in the registry for the old e-mail address or you could
create a complete new Outlook profile:

How to create a new e-mail profile in Outlook 2000?
http://support.microsoft.com/?kbid=195718

How to create a new e-mail profile in Outlook 2002?:
http://support.microsoft.com/?kbid=287072

How to create a new e-mail profile in Outlook 2003/2007?:
http://support.microsoft.com/?kbid=829918

If you create a new Outlook profile, delete at first the old Outlook
profile, restart thecomplete computer (to clean the registry) then create
the new Outlook profile.

--
Oliver Vukovics
Share your Outlook PST files without Exchange: Public ShareFolder
Synchronisation for Outlook and Exchange: Public SyncTool
http://www.publicshareware.com

"bobbenjamin" schrieb im Newsbeitrag
...
We moved an existing person to a new computer. I deleted the old user
email
accounts from the computer then set up the new user. However, when she
creates a new email it does not default with her email address as the
sender.
She has to enter it each time.

I have set up new accounts for people many times before and not had this
issue. What needs to be changed?