My Thunderbird address book includes many hundred entries, and it is synchronized via some Webdav server. Now if I start entering a name for an email, the auto-completion function seems to extract entries from the address book and proposes names and email addresses - great! Only strange: SOME of the names in the address book are NEVER found! I always have to open the address book, copy the email address and enter by hand or copy&paste. My question is now: Is there some trick, maybe some field that must not be missing or whatever, that is responsible for this auto-completion? I love this function, but there are 2-3 persons to whom I write mails pretty often which are never found that way. Any helpful hint very much appreciated! Thanks! Cornelis