thanks. I'd hoped that would do the trick, but left me insecure because I'd never named the address book! At 11:05 AM 08/17/2001, you wrote: >The address book files are in the Nickname directory under the Eudora >directory. Each address book consists of two files with same root name, but >extensions of .toc and .txt. Just backup the entire nickname directory. I >back up my entire Eudora directory. Eudora was the first email program I >used on the internet. I have over 5 years of backed up email messages. . > >Gene