I am trying to install Norton Anti-virus on another computer. I purchased it with a new computer and have the Key but when I try to download on line it only lets me download Norton Anti-Virus 2011 even when I click on 2010 download. The Key I have for Norton Anti-Virus 2010 does not work with 2011. Please help. I have a Norton account but 2010 was installed by the computer repair shop and not associated with my account.