[Erwin]

The fix is this (from vB.com):

In functions.php, replace the whole textarea function with this:

PHP Code:

// ###################### Start gettextareawidth #######################
function gettextareawidth() {
    // attempts to fix idiotic Nutscrape textarea width problems
    global $HTTP_USER_AGENT;

    if (eregi("MSIE",$HTTP_USER_AGENT) || (eregi("Mozilla/5",$HTTP_USER_AGENT) && !eregi("Netscape6/",$HTTP_USER_AGENT))) { // browser is IE
        return "70";
        
    } elseif (eregi("Netscape6/",$HTTP_USER_AGENT)) { // browser is NS 6
        return "40";
        
    } elseif (eregi("Mozilla/4.",$HTTP_USER_AGENT)) { // browser is NS4
        return "50";


    } else { // unknown browser - stick in a sensible value
        return 60;

    }

}