Thank you for the info. You are obviously much more knowledgeable with computers than I am. When something goes wrong with my computer, I just search around for a solution. I stumbled on to a Microsoft webpage that said "Error message when you visit a Web site that is hosted on IIS 7.0: HTTP Error 501.0 - Not Implemented". I am going to be as precise as I can because I don't want to provide information that is wrong or incomplete. I just want to know where I go to get it fixed. Please bear with me.
Then, the page in Microsoft Support went on to say "When you visit a Web site that is hosted on Internet Information Services (IIS) 7.0 in a Web browser, you receive an error message that resembles the following:
Server Error in Application "ApplicationName"
HTTP Error 501.0 - Not Implemented
Description of HRESULT
The page you are looking for cannot be displayed because a header value in the request does not match configuration settings
I don't know what IIS 7.0 meant. I assumed this was the ID of the server. Is Microsoft the owner of IIS 7.0? Or does IIS 7.0 apply to something other than the Server?
This is the error message I receive when I try to access the log into the web site where I experienced my problem.
501 - Header values specify a method that was not implemented
The page you are looking for cannot be displayed because a header value in the request does not match certain
configuration settings on the Web server. For example, a request header might specify a POST to a static file that
cannot be posted to, or specify a Transfer-Encoding value that cannot make use of compression.
This all Greek to me. I do know that the software for this webpage was provided by Jonas Software. I have logged into this web site hundreds of times. Then it stopped working. Do you think that I should look to Jonas Software for a solution.
Thanks again for your info. At least, I can assume that it is probably not a problem with my computer.