I'm afraid I have a new problem which is going to stop looking into this one in its tracks.
Before uninstalling anything I checked to make sure I had a record of the serial number.
I haven't been able to put my finger on it, so until I locate the email from whoever I bought the game from, looking into this is going to have to be put on hold.
This is just a wild guess, but I wonder if the RC didn't do something to erase the serial number setting, because when I looked for my serial number in the configuration file (or whatever it's called), the serial number field was blank.
I probably bought the game around the time of release either from Slitherine, Matrix, or Ageod. Nothing is showing up in my Matrix and Slitherine serial number lists, which is odd if I bought it from them.
Knowing approximately when the game was released would be a great help, because it would narrow down the number of emails I would need to take a look at.
[Disregard part of that message. I found the serial number].