See
http://support.microsoft.com/?kbid=839371 "Margin marks or crop
marks appear on each corner of the page when you open a document in Word
2002 or in Word 2003".
Sophy wrote:
Didn't have this problem before, but my Word docs suddenly now open with "L"
shaped marks (in 4 orientations) indicating page margins in 4 corners.
They're not clickable, and I don't remember ever setting them up anywhere.
Would appreciate any help or advice.