The problem I have is as follows: when I create a new e-mail message in
Outlook 2003, and I type a name from  a contact that is on the global
address list, then the X.500 address of this contact is displayed in
the address line. E.g.: /o=company/ou=First Administrative
Group/cn=Recipients/cn=username

This behavior is unwanted, the first and last name of the contact
should be inserted and underlined.

When I double-click on this address, then the display properties of
this name contains this X.500 address.

When I send the message it is delivered correctly.

I haven't this tried yet, but could this post from Microsoft solve
the problem? http://support.microsoft.com/kb/287623  (Reset completion
cache)

Thanks for any help,
CF