Is that a banana in the Norton taskbar icon? It looks like the Norton icon with two bananas in it. Is that is how it is supposed to look when it is in silent mode and you are playing games. Norton seems to automatically detect that I am playing games and goes in and out of this setting on its own.
Version: 4.2.0.12
Version: 4.2.0.12 Comcast Norton Security Suite
http://img714.imageshack.us/f/symantec.jpg/