I tried modifying the signup.php file to add a wordpress header and I got an error message that pointed to line 1671 in the common.inc.php file (see code below) //if (!headers_sent() || ($GLOBALS['_LANG'][$lang]['encoding'] != '')){ //header("Content-type: text/html; charset=".$GLOBALS['_LANG'][$lang]['encoding']); // } If I comment out the code everything appears to work okay. Am I possibly commenting out something I need? Michael