Norton Security Suite constantly reactivates itself.

I added a new ethernet card to my desktop system. After doing so, I now find that Norton Security Suite displays an "Activation" window reading, "Your service is activated Norton Security Suite is now activated and protecting your computer." This window is displayed each time I attempt to use Norton Security Suite after a reboot. The activation is not persisting across reboots of the system. The "Activation" window may also appear multiple times during a single session. I am unable to determine what actions trigger it as it is inconsistent. Is there a way to get this defect fixed? Is there a work-around?

 

Capture.PNG

 

Norton Security Suite Version 5.2.1.3; Microsoft Windows 7 Professional Service Pack 1 64-bit.