Hi:
Not sure what exactly you mean by "headers" -- if you mean the text that SAS writes out at the top of the page based on a SAS TITLE statement, then when you use STARTPAGE=NO, the SAS title does not appear in the middle of the page. You can use ODS TEXT= to simulate a title between tables when you use STARTPAGE=NO.
In the absence of any code or more concrete definition of what you mean by "headers", it is hard to help more. If you want to get a quicker resolution, you might open a track with SAS Tech Support.
cynthia