Re: "Local Area Connection Unplugged" error
That is just telling you that it is unable to get a connection from the wired network card, not necessarily that something is wrong. Since you are connecting wirelessly to get to the internet I am assuming that you are not using the 10/100/1000 or whatever network card. If you are not using it and don't want to see the little baloon pop up again, right click on the icon in the system tray and go to Open network connections. Then right click on the wired network card interface (it probably is called Local Area Connection) and go to properties. At the bottom of the window that pops up, uncheck the box that says Notify me when this connection has limited or no connectivity.
As far as the shutdown goes, make sure that shutdown is selected and not restart before you click ok.
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