Last week, I got an advice from this forum on how to find out the performance
bottleneck of a report.
It suggests adding a debug.print in each on_format event for each section
with this syntax:
Section - FormatCount - TimeStamp(Now())

I have tried the following three ways, but none of them worked.

Private Sub PageHeader_Format(Cancel As Integer, FormatCount As Integer)
1) got argument is not optional compile error
debug.print Section - FormatCount - TimeStamp(Now())
2) and 3) got sub or function not defined error on Section
debug.print Section(acPageHeader) - FormatCount - TimeStamp(Now())
3)
Debug.Print Reports!Report_rptJJMain.Section(acPageHeader) & "-" &
FormatCount & "-" & timestamp(now())
End Sub

What did I do wrong? And thanks for your help!