Can't see the corner guide lines in MS Publisher 2002
I use MS Publisher 2002 and in the last few days, I must've pressed something on my keyboard which caused the programme to lose all four corner line markings (I don't know what the correct name is) to vanish prior to the document to being printed. I use them to line up my ruler when I trim what I've printed.
This also happened to me some years back but I can't recall the solution to the problem. Publisher is connected somehow to MS Office, something I've never used, preferring to use OpenOffice.

Perhaps a more experienced MS Publisher user than I might have a solution.

My thanks in advance.
Michael.