Hi Everyone Please bear with me while I try to explain a query I have with Windows Mail using Vista Home Premium. When I add contacts to my address book on my desktop PC, using XP Home, I always make regular backups and import the address book to the Windows Contacts on my laptop, which runs Vista Home Premium. But I have discovered quite by chance that when I empty the Windows Contacts on the laptop ready to import a freshly backed up file from my XP machine, I am still able to complete Email addresses for all recipients, even when there is no address book imported into Vista. Where then is Vista storing any Email addresses I compose, and how can I clear them out? On XP, if you delete your contacts altogether, any Email address you use won't pick up the recipient because there is no contact in the book. Not so on Windows Vista if you delete the book ready to import a fresh one? How come? And even if I send an Email using the laptop to someone who is not in my contacts book, it still remembers that person, despite their details not being added automatically? On XP, I use Outlook Express, and the equivalent Windows Mail on the laptop. I also have Office 2003 Professional on both machines, and the Outlook address book is empty on both. Hope this makes sense. Many thanks. Jackie