using ReportItems at report header

hi all,

i need to display the report date range at the report header according to month and year. Each month will be on a new page.

my report is created using matirx. i embed the matrix in a list.

i have a hidden textbox, that stores the month and year value for that page, embedded inside this list that group by month and year.

my problem is the value of the textbox will only appear at the report header if the hidden textbox is on that page. if month of May has 3 pages and if my textbox is placed at the top, then the value will only appear at the report header for page 1.

if i place the textbox at the bottom, the value will only appear at page 3.

i've also tried embedding a table with repeat table header set to true but it won't work.

please help. thanks!