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I've never been fond of the bulleted lists in the left and right columns because of how cramped and sloppy it looks.
Here's a ways to get rid of those bullets in the left and right columns of your site with just a little CSS in your theme's style.css file.
td#leftcolumn div.blockContent li
{
list-style-position:outside;
display:block;
border-bottom: 1px dashed #003366;
padding-top: 2px;
padding-bottom:3px;
}
td#rightcolumn div.blockContent li
{
list-style-position:outside;
display:block;
border-bottom: 1px dashed #003366;
padding-top: 2px;
padding-bottom:3px;
}
Adjust the CSS to match your site and tastes and you're ready to go.
Quick Note: This works well with full-width themes and modern browsers. I have not tested it for backwards compatability.
Enjoy!