TextWiki and pound (£) signs

Hello, I've just discovered that my £-signs get converted to £ if I parse the text through the Text Wiki class. Does anyone know how to prevent this? Code: ------------- <?php $sText = "This //string// **contains** a pound £ sign."; print($sText); require_once("Text/Wiki.php"); $oTextWiki =& new Text_Wiki(); print($oTextWiki->transform($sText, 'Xhtml')); ?> ------------- Visual output ------------- This //string// **contains** a pound £ sign. This string contains a pound £ sign. ------------- Source outputted: -------------- This //string// **contains** a pound £ sign.<p>This <em>string</em> <strong>contains</strong> a pound &Acirc;&pound; sign.</p> -------------- Cheers, /Jocke