OK, last hope is that it's the single-click that's not enabled. Get into Placement Edit, right-click in the background canvas, Customize>Enable Single Click Execution, now the symbols in the canvas should get stuck to the mouse when you click on them.
I'm baaack....... Couldn't log into the Forum for several days. Forum tech support couldn't figure out why............. For some reason I'm able to log in today. Time to play catch up.
No earth shattering conclusions. After working on the board for a few days on a different computer, I took it back to my home office and I can now move and place parts like always. I didn't change any settings. The only thing I can point to would be a computer power down and power up cycle.
Another anomaly solved, but not understood.............
Thanks for the suggestions and assistance guys!