I wasn't deleting part of the find. I was replacing with a bracket that I wrote rather than the one already in the document. If I only replace half it can't find it. If I then save and replace the other half it still can't find it. But replace both and it can, without altering anything else. There isn't anything in between. I realise this sounds dumb and impossible... Maybe I can send you a document with it in or post an attachment here. I would have to delete everything else in the document as I can't post our company stuff online.