Hello, I'm using ubuntu 9.4. Left click on the wireless icon on the start bar, brings up the available connections. Next to connection name, usually there is an icon. What does mean "two monitors" icon?

Do you have two monitors? Or a dual head video card?

Since the OP mentions a wireless (networking) tool, I suspect the "two monitors" image is referring to the network connection, similarly as in Windows, where the little icon indicating a connected network shows two little monitors. When the connection goes down, the monitors either go dark, or have a red X over them.

Depending on the network tool, you may be able to select different icons; for example, when using Knemo to monitor network connections, one can choose between the "two monitors" icon, or a "two modems" icon, or a "two antennas" icon, etc..

So in short, if I'm on the right track, the icon just indicates a network connection.

Sasha

nm-applet shows a "two monitors" icon when you have a wired ethernet connection.