header and footer info is disppeared when paging ?

Hi all:

In my form, I define header subform and footer subform in master page.

Then I define 2 body page.

The 2 body page will have many table rows, and it will display on next page based in rows count. Its works fine.

But now the problem is . in first page, the header/footer display well. But from 2nd page, the header/footer doesnot display.

How it happen? so strange .