Does Norton 360 have a time limit. I brought Norton 360 v4.0 of the shelf when I brought my first lap top 2yrs ago. I still have two installs that I have not used. I brought another lap top recently, with Norton internet security on it. When the NIS trial period expired I tried installing N360 after removing the old NIS files. The N360 would not install, it just took me to the help/support page. I tried to install from here 3 times with no luck. My Norton account is not showing the N360. Any help with this would be appreciated.