I open Outlook 2007 (Vista Home Premium, SP2, up to date), start to compose
an e-mail and click on 'To ... ' only to see a long message which starts
with, 'The address list cannot be displayed. The Contacts folders associated
with this address list could not be opened ... etc. '

Now, I close down Outlook 2007, reopen it and then the that error message
does not appear and I can choose addresses from my Contacts list.

What's the story here?

Thanks, Dave Horne