If I go to Address Book and click an email address and select "Send Email" some addresses are shown in the Mail To box as "Bill Smith" and others as "Fred Jones <fred_jones@server.com>".

The same things happen if I enter addresses in Mail by typing a known contact in the address book. They will show in the pull down list as "Name <name@server.com>" but when selected some just show the name in the To box and others the Name + email address.

In Outlook (sorry to bring windows into this) I can choose how the addresses are shown but I can't see any way in Mail to standardise on the form of just showing the name or why some show in one way and others in a different way. Any suggestions?