There is a new, wide spreading "virus" spreading around which is prompted by a message to "Check out this new flash movie now... It's Great, Bye" with a subject of "A great Shockwave flash movie ". If you click onto the link, you open the "virus" and it will replicate itself to all of those in your Outlook Mailbox... the resource link to check is...
http://www.sarc.com/avcenter/venc/data/w32.prolin.worm.html

It will move and rename files on your hard drive...