Problem solvered!

It appears that the latest version of Internet Explorer is not compatible with Blogger, this problem giving rise to the strange situation in which functionality of the whole blog appears to work just fine, but the "Publish Post" button becomes completely inactive. My technical consultant has not been able to explain the odd specificity of this problem. In all of the years that I have been blogging with various blog hosts I have never had this type of problem before. I have seen absolutely nothing on my dashboard of any of my blogs to note or explain this problem, so be warned!