Simple Master-Detail report which contains a single subreport does not display the same information when run outside of iReports. Possible issue with passing Resultset to main report.
Documented in forum post http://jasperforge.org/plugins/espforum/view.php?group_id=102&forumid=103&topicid=78026
Version 3.7.4 of iReports and 3.7.4 of JasperReports.
I have purchased both Ultimate Guides but have been unable to overcome this problem.