Hi All, Apologies in advance if I'm doing something dumb here, but I've recently installed mediawiki, built texvc, and have set $wgUseTeX = true; $wgMathPath = "{$wgUploadPath}/math"; $wgMathDirectory = "{$wgUploadDirectory}/math"; $wgTmpDirectory = "{$wgUploadDirectory}/tmp"; in LocalSettings.php However, on entering some math content into the wiki and saving it, all i get is the following error message as output: Failed to parse (Can't write to or create math output directory) I have tried setting the math directory to be world writeable (dangerous I know), to no avail. All help gratefully received. Jonathan -- ------------------------------------------------ Dr Jonathan Underwood The Department of Physics and Astronomy The Open University Walton Hall Milton Keynes MK7 6AA UK Tel: +44 (0) 1908 652514 Fax: +44 (0) 1908 654192