Hey Scotty,
 
Strange with the condo computer last night.  We had a heck of a time printing as child finally figured out that the printer name was changes from “Condo Printer” to “HP Laserjet Series 1” (or something like that).  Any ideas how/why that would happen?
 
Then, child’s homework was a nightmare as the word document somehow ended up read only, …. Her USB wouldn’t eject properly, etc.
 
So, I thought I would shut it down and can’t do that either.  No icons on the screen now – just a picture.
 
Can you let me know how I can reset it?

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With the printer,  If it was connected to your wireless router then any changes we made to the router would have effected the printer's name.  Just deleting the printer and re adding it in your printer system preferences should work.  

As for the "read only" USB ejecting issues, those have nothing to do with the network.  Sometimes the permissions of a file can change depending on their location on the hard drive.  Permissions are sort of a dark art and can change at random.  Sounds like the computer had a problem and force shutting down may be the best way to solve it.  Hold down the power button until the computer turns off then restart.  It should resume normal behavior if there's no larger issue at work.