NortonAntivirus 2010 Licences

Hello,

 

I'm quite confused about how many PC can you protect if you buy a new NortonAntivirus 2010. In some places states you can protect 3 PC: http://www.everyclickmatters.com/products/overview.html (just hold the mouse over NortonAntivirus 2010) in some other places only one: http://www.symantec.com/norton/antivirus or http://shop.symantecstore.com/DRHM/servlet/ControllerServlet?Action=DisplayProductDetailsPage&SiteID=symnahho&Locale=en_US&ThemeID=106300&Env=BASE&productID=133081300 . So which information is correct? You get 3 or 1 licence?

 

Thanks in advance for any help.