On 2011-02-28 [+0900 JST], at 6:44 PM, Doug Browne wrote:
> I have used Mail for years, adding, removing and editing address without any problems. Suddenly one address refuses to be changed! No matter what I do, the original version always comes back. The new version is, of course, in the Address Book.
I'm not very sure but...
1. Quit Mail if it is running;
2. Trash '/Users/you/Library/Application Support/AddressBook/MailRecents-v4.abcdmr'.
If this works, Mail stops suggesting past mail addresses not in Address Book.
Kino