Problem clears!

The problem with Blogger which affected my other blog Cambridge2London, and which I documented, first here, then here, then here and here went away late yesterday evening (i.e. about 12 hours after I noticed it). I can now post to Cambridge2London, and I no longer have to solve a CAPTCHA to do so. Thanks for the comments on my first posting on the issue, but I can't help. All I got was an automated reply to my support request, so I don't even know whether the problem was fixed or just went away. I also don't know whether the inability to post and the need to enter a CAPTCHA to add or amend a post were related, or separate, issues. Sorry I can't help more.

Anyway, at least I can now get blogging!