Currently trying to figure out how our previous designer created a text frame that underlines every line the length of the frame automatically. I created a quick sample of this box which may be download here: Zippyshare.com
haven't look at your sample yet, but if each line is a separate paragraph, a Rule Below could do what you describe.
That's exactly what it is...
Thanks! I looked at paragraph rules but failed to notice that the below was on... Thanks!