Did Scott give the location of all the hidden files that may not get removed so you can manually remove them?

No. I found the scdp.lic file but that was it. Ccleaner and a registry cleaner both showed nothing. Then I went into regedit directly and searched and didn't find any references. Then I followed your suggestion to install to a new directory. All that still came up empty.

Interesting though, I renamed the SCDP.LIC file instead of deleting it, just in case, but when I re-installed it did not re-create the .LIC file. At least not that I've found yet.

Well, problem solved! Scott had asked at one point if I used any 'Stardock' products, and I do. I have for years with no problems. I use a product called 'Windowblinds' that gives a spectacular effect to windows and makes general windows look a lot better. I disabled it and it had no affect. Today, as a last resort, I began to uninstall programs one by one to see if any made a difference. When I completely uninstalled Windowblinds, SCDP worked again. I have no idea why.. I had done a computer roll-back so it wasn't just an update.

Anyway, back in business. Keep this one in mind. Drop down menu options missing...check for products from Stardock!

Cool, I knew there had to be a hard way to get a simple answer.