I was reading a pdf and wanted to save the contents on the desktop. I did the save, and had confirmation.

But the desktop did not show the new files.

I went to command line and saw them there.  Gnome was not being advised, or Gnome was failing to be advised by the PDF reader. 

When I logged off and returned, Gnome picked up the total of the files on the desktop.

So.. What to do.  I will advise Adobe too.