Recently I installed a new version of NIS 2011 (license to February 9, 2013 - 18.7.0.13), to replace the expired version of NIS 2011.
Usually it is possible to upgrade to the latest version (2012) after installation.But now I get a notification of expired license period after the upgrade has completed..
Try Upgrade from within the program itself, via MyAccount and via the Support page.
Also made use of Norton Removal Tool. In all cases as result an expired license period.
Who knows how to realize upgrade to 2012 version? I use Windows 7.