I finally found a solution to the Black Screen problem. I was getting the same problem with Visual Studio so I started investigating the VS black screen. An article I found suggested to check all Windows updates to see if there was something that might cause the problem. What I did was download a file from Microsoft called Windows6.1-KB947821-v34-x64.msu. I didn’t realize at the time that this file updates all files in the Windows Operating System. It took several hours to complete! After completion, I tried Visual Studio again and it worked. I then downloaded the latest Local Lightning (5.5.2) and now everything works!
I hope this is a help to someone!