Thanks for the forum link, i did a search, but obviously did'nt use the correct terms, plus search on this site sucks sometimes :)
I'm on the latest version, 11.0.4014.26
This particular machine is on Windows XP SP2, if that makes any difference.
I just disconnected the network and I see that the shield is back, just like in the post. Reconnected and the shield is gone.
This particular machine is a Dell D600, Mobility Radeon 9000.