Unknown icon on taskbar

Kim Mullinix

Honorable
Mar 17, 2013
4
0
10,510
I have a new computer (December) Windows 8 and downloaded constant guard/Norton. Since then I have a lime green box with the letter A in the middle of the box in my taskbar that does noting that I can see, no description when I click on it add I cannot get rid of it. Any idea what this is?