When I open a workbook it prompts me for:-
"Update" or "dont update"
"Workbook linked to other sources" type of message.

The workbook concerned is a copy of my original in another folder (I always
work off copies)
I have never experienced this before (the prompt) which is annoying. I have
tried both `update` and `dont update` but still get the prompt every time I
open it.
How can I stop this.
thanks