i have an excel 2002 workbook with the following VBA...

Sub InsertActivity()

Dim r As Long
Dim Start As Long
Dim answer As Long

answer = MsgBox("Are you sure that you want to INSERT an activity
here?", vbYesNo)
If answer < vbYes Then Exit Sub
Application.ScreenUpdating = False
ActiveSheet.Unprotect Password:="flow"
r = ActiveCell.Row
Start = Cells(r, "A").Select
ActiveCell.Range("A1:AU1").Select
Selection.Copy
Selection.Insert Shift:=xlDown
Application.CutCopyMode = False
Start = Cells(r, "A").Select
ActiveCell.Offset(0, 1).Range("A1:AU1").Select
Selection.ClearContents
Start = Cells(r, "D").Select
ActiveSheet.Protect DrawingObjects:=True, Contents:=True,
Scenarios:=True _
, AllowFormattingCells:=True, Password:="flow"
Application.ScreenUpdating = True
End Sub

it is for a form, and the macro allows the user to insert a row in the
body of the form in case a row needs to be added. It works great,
except if the active row is in the header part of the form, and not
the body of the form, where you would normally insert a line. If you
absent-minded forget that the active cell is in the header, the result
is a 2nd header of several lines being inserted. Several lines are
inserted because there are some merged cells in the header. What I
would like is to be able to modify this macro so if the active cell is
anywhere in the header rows 1 -19, the macro will inform you that you
cannot insert a row there, then exit the macro. I have put in the
warning message box, but it has been overlooked before, including by
myself even!

Thank you for your help as always,

Tonso