gyges

Hi,
I got the same problem: white screen in tinymce when editing posts, impossible to switch to HTML tab.
Found the problem: it was generated by the Flash MP3 Player JW2.3 plug-in. Everything worked after desactivating it.
However, I needed the plug-in so digged inside the code and just commented this line in class.config_editor.php in the Flash MP3 Player JW2.3 plug-in:
Line 15
$this->include_color_picker();
So it’s now:

/* Conflict with TinyMce editor:
    $this->include_color_picker(); */

And everything works: the Flash MP3 Player JW2.3 plug-in and the tinymce Editor.
By the way, here is the function that causes the damage:

function include_color_picker(){
    if ($this->wp_ver >= 2.7){
        wp_enqueue_script('farbtastic');
        wp_enqueue_style('farbtastic');
    }
}

So you can see why this would only affects WP 2.7 or more…

I hope this helps other people!