Display Email Address in Sent Folder

[Maurizio]

I have Outlook 2000 on Win98 SE.
I don't use contact or personal address book, when I send a new message,
I digit manually email address in to field.
Because I need two different user profile, I configured Outlook 2000 in
Corporate Workgroup mode, but I don't have Exchange Server.
When I send a message, I can view in sent folder, the message with this
information in To field:

'Name Surname'

Before change in Corporate Workgroup mode, in sent folder I can see:

Name Surname [[email protected]]

There is a way to correct the behavior.
I would like to see in To field of Sent Item like: Name Surname
[[email protected]]

Thank you.