There is a line control that you can use.
I often prefer to use the line method since it doesn't get in the way of
other controls on the report during design. For instance to draw a line at
the bottom of the Page Header section:
Private Sub PageHeaderSection_Print(Cancel As Integer, PrintCount As
Integer)
Me.Line (0, Me.PageHeaderSection.Height)- _
Step(Me.Width, 0)
End Sub