Hi,
I also see the dot in Firefox.
The problem seems to be related to the sidebar code. A quick check of your page with the W3C Validator Service shows the problem area.
About line 125 of the code you will see this:
<div id="sidebar">
<li class="pagenav"><h2><ul><li class="page_item page-item-3 current_page_item"><a href="http://www.ohiocichlid.com" title="Ohio Cichlid Association">Ohio Cichlid Association</a></li>
If you delete or comment out <li class="pagenav"> you will lose the dot, at least in firefox. The "li" tag is improperly used: it lies within "div" and not within "dir, menu, ol, or ul."
Also, in XHMTL 1.0 transitional, "ul" is not allowed within "h2."
So, you might want to take a look, perhaps, at your sidebar.php file for the problem.
I hope this helps.
Royce