From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wanrong Lin <wanrong.lin@gmail.com>
Subject: Underlines and strike-through lines in column view
Date: Thu, 24 Apr 2008 10:55:38 -0400
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Hi,

In the column view, I often see some underlines and strike-through lines 
that show up kind of randomly. I have seen this for quite sometime, 
maybe since I began to use the column view 3 or 4 months ago. Are there 
any special meanings for those lines or they are just noise? I am now 
using Emacs 22.2 (on windows) and org-6.02. Thank you.

Wanrong