Hello again,
I fixed this problem for you. It turns out that you had inserted a non-breaking space just before the closing link tags </a>. It was that non-breaking space which was visible. Since my CSS causes links to be colored red and underlined, I was seeing that space as a single red underline.
THE FIX
Using the WordPress plugins editor, I edited the file, "wp-section-index/classes/wp_sectionindex.class.php" to remove all instances of and comment out the line where you cleaned up the code since that was no longer necessary.
I simply searched for and, for every instance found, I deleted just that one space. For the cleanup code, I could have just deleted the line, but I decided to comment // it out instead.
PERMANENT FIX
Not sure why the was inserted in the first place, but removing it did not break the plugin: it works better now for me. In a future version, you might try omitting it so no one else has this problem.
Thanks again for the excellent plugin.
Alan
PhotoCitizen.com