Just about the time I was really extolling the virtues and speed and elegance of Safari, the gods doth punish me. Ah, pride is a most dreadful companion. And maybe there is a reason the release says Beta!
All of a sudden, when ever I would hit the Command, Option, Control, or Shift key, the corresponding symbol would appear (in white) on my screen. Huh? Says I.
The symbols were about a half inch square, in the middle of the screen and near, but not touching the right edge. Subsequent clicks would make the symbols disappear.
A call to Apple indicated that this might be related to Safari and that I had best to create a new User Account, delete the User Preferences Folder, etc.
Since I keep a clean (but not quite sterile) copy of OS X on a separate drive, it was, IMNHO, easier just to create a new OS X with Carbon Copy Cloner. So that is what I did, and all is again right with the world
Still, I eagerly await the real release Safari.
Harv