As there isn't an October thread, I'm going to post this here. I was looking at http://www.dreamwidth.org/support/faqbrowse?faqid=155 that provides a list of the HTML tags that can be used on DW. There seems to be a closing tag missing for the 'sup' tag example. Actually I just looked and there's an opening tag, a second opening tag midway through the example sentence and only one closing tag.