autocomplete addresses

I use autocomplete to quickly address emails, but I have a few addresses that I have sent one email to that have become the three letter default to some of my common contacts. I am sure that the Subaru dealer is getting tired of me scheduling meetings. Is there a way to eliminate the offending addreses from memory, while retaining the use of the auto complete feature?

I have tried adding these names to my address book, then deleting them, but that didn't work.

Thanks,

John

This works for me--when an incorrect autocomplete name comes up in the list, use the arrow key to highlight it and press Delete key. Or if it's the first name and already highlighted, just press Delete.