I've "solved" the problem I was having with Contextual Menus not working on my computer.
If I had watched what I was doing in the first place, I would never have written to ask for assistance.
The solution? Quite simple. Press the correct key when accessing Contextual Menus.
Instead of pressing the Control key, I was pressing the Option key THINKING I was doing the correct thing.
When I switched to the CORRECT key, the menus work just like they're supposed to.
Thanks to all who tried to help and I apologize for wasting your time.