I am having this same issue also on a new Joomla 3 site that I just completed (site was Joomla 1.7, then 2.5 prior). The page in question is: http://gralva.com/index.php/archives. I have no parameters specified in the article – just using: {easyfolderlistingprofolder=WebFiles/2012/}
This is the first problem I have had with this product, and I love the Easy Folder Listing Pro plugin. Thanks in advance for your support.