One of MSN's advertisers has elected to use a form of advetising that contains a phish. Norton detects and Blocks it. We have recieved numerous reports of people attempting to copy paste and finding a link containing this on their clipboard
xp-vista-update.net/?id=31863...
The link containing this is not a Windows update site. Do not click it!! It is an attempt to get you to download crap. Commonly called a Phish site. Make sure your clipboard is set to prompt and your anti-virus is updated. I doubt MSN is aware of the problem. Most Pay per click advettising is done on a self serve basis. Hopefully they will revoke the party responsible's advertising account soon.
Screenshot follows: