Q: All desktop icons are gone!  The screensaver is blurry...What a mess!  What do I do now???

Please help me.  I need my desktop icons to be on the desktop.  They are gone, gone, gone.

The screensaver photo that was so fantastic, is now a huge blurr...absolutely ugly and impossible to tell what it is.

Can somebody tell what to do to get things right on the desktop.  I wish I had not run this update...too late!