when clicking the reply ro edit links on the buttom of a discussion or a reply to a discussion
on the discuss.php page, i get a blank textarea with no htmlarea editor.

looking into the code i get some errors (while the page loaded)
JS error: textarea is null on line 564

(htmlarea.php)
HTMLArea.prototype.generate = function () {
553 var editor = this; // we'll need "this" in some nested functions
554
555 // get the textarea
556 var textarea = this._textArea;
557 if (typeof textarea == "string")

{ 558 // it's not element but ID 559 this._textArea = textarea = HTMLArea.getElementById("textarea", textarea); 560 }

561 // Fix for IE's sticky bug. Editor doesn't load
562 // editing area.
563 var height;
564 if ( textarea.offsetHeight && textarea.offsetHeight > 0 ) {

It seems, that : textarea = HTMLArea.getElementById("textarea", textarea);
return null.
and textarea is not found on the document. (funny)