ZBA Girl wrote:

I would've sworn this is the first time since I began using Outlook
that it hasn't automatically entered addresses. At this work
location, we had it in 2000, maybe even earlier, but I gues you're
saying that wouldn't have been possible??

Not autocompletion. There is a feature in OL 2000 and beyond called
autoresolution, however. Search Help in Outlook for "resolve address" or
"checking names"
--
Brian Tillman