I don't know what in tarnation is going on, but my airport is not recognizing my network and when I unplug the Ethernet cable from the airport and go directly into the computer, that isn't working either.  I'm on via linksys right now.  Nothing I do is working, which, of course, makes me very nervous about getting the notes up later.  I may write them very early just in case.  Of course, this happens right after Apple Care support is closed.