Adjusting Virus settings in Outlook 2002

Hi

I've got a couple of users who just yesterday started getting an erro
screen every time they send an email message via Outlook 2002. Th
screen says the following

=============

Microsoft Outlook

A program is trying to access e-mail addresses you have stored i
Outlook. Do you want to allow this? If this is unexpected, it may b
a virus and you should choose "No"

[] Allow access for [time duration

[Yes] [No] [Help

=============

Like I said, this just started yesterday and we've done nothing to th
email settings at all. We haven't even installed any patche
recently. I cannot find where to turn off this annoying featur
either. (We have Norton AV Corporate Edition and it's fully up t
date on virus defs, so we're not the least bit suspicious that it's
virus -- and I did check the computers to ensure that they wer
indeed virus free.

I've searched the MSKnowledge Base and the Outlook help files an
cannot find how to fix this. Can you help me out by directing me t
the menu where I can adjust this

Thanks

Michael Gagne