Access 2007 not showing data on subreport until subreport is selected by click mouse

Hello

I have an access report which is simple a large set of domain aggregate function calls.  These calls were divided into a set of subreports for ease of design.  The code populating the fields is located in the onload event for each of the subreports.  The individual subreports work correctly when executed on their own.  When the main report is displayed in report view, the data on the first of the embedded  subreports is visible, however the other subreports only show heading.  If you click on the subreport then all of the data  appears.

These reports are not linked.  There is no input source on the main report or the subreports.

Any suggestions would be appreciated.