You know, I'm a pretty good listener and an ever better looker and I'm sorry that I mistook the text "Change product key" as a direction from you rather than being part of the screen capture.
A couple of days ago, I had already Googled "error 52" and explored some of the top results. I had read the Microsoft article at http://support.microsoft.com/kb/982116 and had already run the Microsoft FixIt program. The program did not locate any problems so it did not fix anything. The other option in that article is to "let me fix it myself" and start tweaking the registry myself to change the upper and lower filters. Since this makes me seriously nervous, I continued searching for options and ended up on this forum a couple days ago.
So before I start messing around in the registry, I'd like to make sure that I'm not "dreaming up other things that won't fix" the problem. At the risk of being shouted at again, I'd like to ask if you believe that doing these registry tweaks is what I need to do now.