I have a menu item calling a category, with BLOG LAYOUT:
http://domain.com/index.php?option=com_content&view=category&layout=blog&id=6&Itemid=11
I have a Section with a text description, where i have put a link "manually" to the category:
<a href="index.php?option=com_content&view=category&layout=blog&id=6&Itemid=11" target="_self">visit this category</a>
(observe that "&" is saved as "&" because for the JCE Extension Team the "&" is the correct way to display the & character in an XHTML document.)
Well, for Artio Joomsef the second url causes problems! The sef url will be duplicated, and will not show as "blog" layout.