That's correct Rob.
The motherboard was replaced with the exact original part number. I was also getting help from a MS Moderator on a MS forum, and ran a diagnostic tool, and the Mod told me all I had to do was use the sticker key (not OEM key) to activate Windows, and that's what I did. What I didn't know was that there are 2 different activation keys on OEM installs: The first is used in the factory, and that only works once. The second (different from the first) is the product key on the sticker, which is used after a hardware modification, etc.
Anyway, we shall see, and like you say, I was made aware of it..."warned" is a bit strong, don't you think The MS folks think I did the right thing, so I'm good with that for now.<div>
Thanks for the help. Ed