My mom just e-mailed me, last night I upgraded her from office 2000 to office xp pro. Everything went well. She uses (and used) Outlook express to read her email. She just e-mailed me saying she "lost her address book". I haven't been over there to look for it yet, but I might have to... On my own computer, thinking I could find it on mine, then email her with some instructions, I couldn't even find my own address book [at least as a .wab file] it seems the address book is only a .wab file when you choose to export it for backup. where and what is the address book file normally, before someone wants to export or import a copy? That is where I'll tell her to look... I wonder why the upgrade made her lose it?