CMS Made Simple Forums

I have  a problem  with language in TINYMCE editor.
I would like  change  language  on polish. 
I trying  change in option and insert "pl".(delete en)  but nothink was change.

help

thanks

Which TinyMCE module version do you are using?

I installed TINYMCE  2.0.3 version

because  when  I instaled version 2.0.4 TINY editor have  some mistakes, (some icons don't display, some buttons have different names)