Having spent a day re-reading TFM and Googling, I am getting no closer to solving a problem with parser functions not working. Something complicated like DPL works like a charm, but not something basic like {{#if: {{{x|}}}|yes|no}} which renders as {{#if: |yes|no}}. Obviously I am missing something /really/ fundamental! I believe it is installed correctly: Special pages Special:Version: * MediaWiki: 1.10.1 * PHP: 5.2.0 (cgi-fcgi) * MySQL: 4.1.21-standard Parser hooks DynamicPageList2 (version 1.3.1) ParserFunctions Extension functions wfSetupParserFunctions, wf_include, wfDynamicPageList3 and wfDynamicPageList2 Parser function hooks #expr, #if, #ifeq, #ifexpr, #switch, #ifexist, #time, dpl, int, ns, urlencode, lcfirst, ucfirst, lc, uc, localurl, localurle, fullurl, fullurle, formatnum, grammar, plural, numberofpages, numberofusers, numberofarticles, numberoffiles, numberofadmins, numberofedits, language, padleft, padright, anchorencode, special and defaultsort $ grep ParserFunctions LocalSettings.php require_once( "$IP/extensions/ParserFunctions/ParserFunctions.php" ); $ ls extensions/ParserFunctions/ParserFunctions.php extensions/ParserFunctions/ParserFunctions.php ls extensions/ExtensionFunctions.php extensions/ExtensionFunctions.php Any hints on how to fix this would be much appreciated! Thanks -- Frank