Get report to fill up a page

[stucker]

I have a rather complex iReport v. 1.2.6 which has a number of sub-reports. Each new record from the main report query must start printing on a new page. This works fine.

Reports structure:

Main detail

Subreport1

Subreport2

Subreport3

More main detail

Subreport4

More main detail

Subreport5

Most of the time the info from the main query + the details from the sub reports would fit on one page. My report does not fill up the first page before it jumps to the second page. If subreport5 reads more than one record, only the details of the first record read are printed on the first page for the master record and the second record gets printed in the 2nd page even though it only used about 10 lines and would easily have fitted in the space left over on the first page.

Can someone please tell me what I can do to force the report to use up the white space on the first page per master record.