The others got the header part right. But to get the line right below the last detail line all the time, you need to put it at the top of the Summary band.

>I would like to display the horizontal line in the detail area for only the top and bottom, but not on each row of the detail area. How does one do this without driving one's self crazy?
>
>Like this:
>________
>|record1|
>|record2|
>|record3|
>|record4|
>_________