1. Go to Report > Section Expert
  2. Highlight the Report Header section
  3. Click the X+2 button across from the Suppress (No Drill-Down) checkbox
  4. Enter a formula similar to the following: isNull({Field_Name})
    * where {Field_Name} is one of the fields in the subreport that does not have data
  5. Click Save and Close
  6. Click OK
  7. Refresh the report