Hi Leo, thanks very much for your suggestion. I tracked it down…. finally…. through installing classic editor and then copying and pasting in the code section by section – it was the PositiveSSL trust seal javascript. Again totally weird because it was working fine up until 2 days ago, and I had not changed it. Anyway, I have removed the javascript and just inserted the PositiveSSL png in its place. Not as trustworthy I guess, but what to do…..