Lightscapes is right.
Lightroom is displaying the Underexposed parts of images. Uncheck that box... all will be well.
When you are in Develop mode, if you take the Black (or white) slider, and hold the OPTION key down, you can see that when making changes. It helps for making some adjustments.
I'll try that as well tomorrow. Thank you SO much!
Nice little tutorial on Clipping in Lightroom
https://www.google.com/search?q=how+to+get+clipping+to+show+in+Lightroom&ie=utf-8&oe=utf-8&client=firefox-b-1-ab#kpvalbx=1
That video was very informative. Thank you. I've subscribed to that youtube channel. I really appreciate your help.
There's some good Lightroom and Photoshop stuff there!