nested:iterate in an included page

[Chris Sargent]

I am having trouble using the nested:iterate tag in a page that I am
including using jsp:include.  I am probably doing something silly, but
could someone provide some help?  My main page looks like this:
 
   ...
 
   <html:form action="/Time/SaveTimesheet" styleId="GridForm">
   ...
   <jsp:include page="TimesheetGrid1View.jsp" />
   ...
 
And the included page looks like this:
 
   <nested:root name="timesheetForm" />
   ....
   <nested:iterate indexId="index" id="entry"
property="timesheet.line[0].entry" type="TimesheetLineEntry">
    ....
 
I get a null ref error on the nested:iterate tag in the included page.
 
Any help is much appreciated!  
 
Chris