Hi Brian,
I was gone and away from internet access over the weekend but now am back and have successfully uploaded my entire site. Thank you so much for the very explicit help you gave. For some reason I did not equate control-click as simply being a right-click although I do know that is the case on a Mac with a single button mouse.
I felt kind of silly when you pointed this out but, oh well, is what it is.
Thank you very much.
Emily
Eventually - after losing hope but trying an upload yesterday in the hope that something might have changed … it worked. The site’s uploaded. I changed nothing. Don’t know what happened - perhaps my ISP changed something somehwhere. Anyhow, problem seems to have resolved itself.