Help with backup

Hi, I recently bought Norton Antivirus 2012 and installed it on 2 laptops.  All is well with the old laptop that runs XP but the newer one that runs windows7 is causing problems.  Every time I start up the laptop I get a message asking me to start up the Norton Online Backup.  If I click on the link at the bottom of the box that says DONT REMIND ME AGAIN it goes away and comes back next time I start up.  If I try to start up the trial, it tells me that it cannot find the web page.  Anyone have any idea for getting rid of the message as I am not bothered about using the backup service.  Many Thanks