I can't thank you both enough for your help; I'm very grateful to have resolved this problem. Option 7 worked immediately.

The camera/app permission switch is dimmed out (in the off position) and will not allow me to grant camera permission; Can anyone please help me to gain control of this setting. Thank you.

Thank you for your thorough and prompt reply. I really appreciate your expertise, time and effort.

When I shut down my pc at the end of the day it goes off completely and all lights disappear. However, when I start my computer the next day and press the power on button, it turns a blinking yellow...