In order to resolve my issues in the 'Articles' section, I have reverted to my original System on a temporary basis. When I now open my 'Live' site I can view the Articles'' section OK. Unfortunately you need to scroll down to the last page to read the latest editions to the segment. I will endeavour to rearrange for the latest to appear at the top of the initial page in due course. Phew...time for a double scotch!!
Meantime, anyone visiting my site, especially the articles section, if you can view the contents OK I would appreciate a short email of confirmation to email@example.com Thanks folks.