Tiny window constantly appearing

Hi, we've got 35 users running N360 Premier. 

One user keeps having tiny boxes show up - like, just big enough to have the Norton logo and the red X to close the window, but no text or radio options to not show again, etc.

I've poked around the settings area - I have most notifications turned off as they just confuse the end user, but couldn't find anything to solve this issue.

 

I appreciate any attempts to resolve my issue :)

Levi