Formatting a document in Word 2007. I set the headers thus: Insert> Header> Different odd and even pages; from the drop-down menu I selected Contrast (Even page) and Contrast (Odd page). This choice automatically produces the page numbers to the right on recto pages and to the left on verso. I was able to format the header for the verso pages satisfactorily with the header aligned perfectly with the LH margin of the body text.

However, I am unable to get the recto page headers properly aligned with the body text. I can get the RH end of the header (which is actually the automatically produced page number) just slightly to the left of the RH margin of the body text, or just a little to the right. What step(s) am I overlooking to getting the recto headers perfectly aligned?