NIS Pop-Up Screen or Virus?

Just a few minutes ago I got a big pop-up like screen that appeared to be an ad for a Symantec service to track surfing on your computer. I managed to close it without clicking on anything but I have never seen anything like it from Norton.

 

Is this legit or have I got a potential issue?

 

I was did not have my browser open or email up, nothing active in the internet but Norton Pulse and update checks as far as I know, so it was nothing I surfed in to, I was in Visio at the time and it never calls home.

 

If this was an ad, is there any way to turn it off, not really a feature I want on if there is an option.

 

Thanks

 

BTW -- I am not dissing NIS, seems to work great, at least I think so, that is why I am asking about this odd screen, I have been using Norton stuff from the original Norton Tools days and never seen an ad just pop out of no where.