Hi, After upgrading libxml2 on FC1 (libxm2-2.6.6-3) I get messages like below when I start yelp from command line (e.g. yelp ghep:/path/manual.xml). Is it a yelp issue? -- Use of deprecated SAXv1 function endElement /usr/share/sgml/docbook/yelp/yelp-custom.xsl:18: namespace error : Namespace prefix doc for type on param is not defined <xsl:param name="graphic.default.extension" select="'png'" doc:type="string"/> ^ /usr/share/sgml/docbook/yelp/yelp-custom.xsl:136: namespace error : Namespace prefix doc for type on param is not defined <xsl:param name="make.year.ranges" select="1" doc:type="boolean"/> ^ ... -- Zoli