Hi Paul, yes, I'm viewing this forum via Chrome browser. But have been using it for some time, so unless it is a recent update that has introduced the problem it seems unlikely.

But I have just gone back to the previous document that I generated OK in January and I can copy table columns (and complete tables) to a new document OK, so perhaps the problem has "gone away in the night"!

I shall be watching for any regression and noting what changes I might have made...

Best wishes and thanks for the help, Mike.