Unknown Icon Downloaded

I have an unknown icon that was downloaded when I rebooted my computer. (I did not knowingly download anything) When I rebooted the computer message said to wait while it updated my configuration files. Now this icon is on my bottom tool bar. It is an eightsided metal looking icon with a wavy line through the middle. This line starts with the color yellow and turns to red from the middle to its' end (left to right). When I pass the mouse over it, it does not give a description of what it is nor does anything happen when I right click or left click on it. I don't see anything out of the ordinary in the startup menu or in the add/remove program file. Can anyone tell me what this is and how to remove it please? Thanks for the help.

PS I have ME for my OS