hello, Lord Daedra.
I want you to try debugging.
Open "assets/plugins/tinymce/js/mce_init.js.inc" by texteditor.
comment out double slash, "language" entry.
If still no use,
plugins : '[+plugins+]',
theme_advanced_buttons1 : '[+buttons1+]',
theme_advanced_buttons2 : '[+buttons2+]',
theme_advanced_buttons3 : '[+buttons3+]',
theme_advanced_buttons4 : '[+buttons4+]',
theme_advanced_resize_horizontal : false,
external_link_list_url : [+link_list+],
theme_advanced_blockformats : '[+blockFormats+]',
theme_advanced_styles : '[+css_selectors+]',
theme_advanced_disable : '[+disabledButtons+]',
theme_advanced_resizing : [+resizing+],
Please comment out one by one from the bottom.
If still no use,
<script language="javascript" type="text/javascript" src="[+mce_url+]jscripts/tiny_mce/tiny_mce.js"></script>
<script language="javascript" type="text/javascript">
tinyMCE.init({
theme : 'advanced',
mode : 'exact',
elements : '[+elmList+]',
})
</script>
Please write only this in "mce_init.js.inc".