Why Word 2007 changes header of previous section?

[Sults]

I have quite often a problem, that editing a header of current section, that
is NOT linked with header of the previous section, still changes the header
of the previous section. This is so annoying!

 

[Stefan Blom]

Note that each Word section can have up to three different headers (and
footers), namely if you select "Different odd and even" as well as
"Different first page" in the Page Setup dialog box, and each type of header
(footer) must be separately unlinked from its counterpart in the preceding
section.

For more on headers and footers in Word, see
http://sbarnhill.mvps.org/WordFAQs/HeaderFooter.htm.