I have created a fairly simple document with about 6 sections. When I add
text to the header of the first page of section 3, two things happen. The
text is NOT repeated on the subsequent pages of section 3 (despite the fact
that the header DOES say section 3, and it also says "previous"), so I have
to write it in again. However, when I do that, the text then appears not only
in the rest of section 3 but also some - not all - pages of section 1 -
notably the table of contents and a couple of others!! WHY??????????