I have solved this problem. I had been performing many cut and pastes both within and between two books. The paste option to keep formatting seems to have been the source of the problem. By copying the material into a new blank document with the same set up as the original source document, the merge formats choice eliminated the problem. I am at a loss as to why this made a difference, but it did and now I know how to avoid the same issue cropping up again....I hope!!! I suspect that if I had also copied using the text paste option, I would have wiped out the format, though maybe as it was suggested to me I would need to copy into NotePad to strip all formatting information out of the text. Did not try that but it should also work.