Linc,
I tried doing a restart before I posted this problem. Didn't resolve it. After reading your response I decided to do a complete shut down, thinking the parameter RAM may not get a re-write using the restart option.
Later on, I restarted/fresh booted and the problem was fixed. Thank you for the assist!
For what it's worth: After I finally got fed up with Windows (malware, browser hijacks, etc.) and going back to Apple after many years in the DOS/Win/Novell worlds, I have been very happy with the virtually trouble-free operation of my iMac. I had to remind myself that Macs are still boxes full of chips and software that aren't perfect, but they sure are a lot closer to perfect than Microsoft ever was. Thanks again.