Print Totals Headinds are not coming

Dear All,

in Ap–>Reports -->Transactions -->Purchase orders–>PurchLLines.

i was customized this reports .now when am going to click on Report–>in the dialog–>select now gqry will open .in the query 3rd Tab Print options.I make yes for print ranges,print totals only and print grand totals only.

now in the report all the valus of totals and grand totals coming correct but that fields headings are not coming.plz tell me where can i check for this