(replying to both of George White's posts)
My e-mail service provider apparently thought both of your posts (and
several other posts Fedora users list posts to other threads) were
junk. So I did not see them until a few days later. But your attempts
to help are appreciated. The friend who gave me the used replacement
monitor told me I could not have repaired the bad monitor because it
would have needed a special tool that I don't have to open up the monitor.
Bill.