Hi William, 
Thanks for a very prompt reply.

I am an utter laymen in regard to this so please bear with me if I ask/express
anything that seems stupid beyond words.

Everything was downloaded and behaving absolutely fine until I moved the
entire project to another partition, so I can't see the problem being anything
that I did/didn't set in originally saving the site.

The site has now gone, but I assumed that the saved project, saved the
information/structure in a self contained way, thereby circumnavigating any
need to connect to the site/net for any files.

Is this not correct?
regards

Peter