WP_editor combination bug and hide admin menus

I am new with using qTranslate. At first view everything seems to work perfectly fine. But after I started to look around after the installation I saw some of my plugins where broken. So I tried to deinstall qTranslate, and my plugins worked fine again.

Most important issue, the wp_editor I’ve created in my own plugin where broke.
I’m using the following code:

add_action( 'edit_page_form', 'edit_content' );
                wp_editor(
                    $edit[0]->content,
                    'content',
                    array( 'textarea_name' => 'edit_content' )
                );

Someone know this bug/problem?

I also want to hide the admin menu’s that change the admin language.
Someone know how to do that?
Tried to google it but I could not find a solution.

http://ww.wp.xz.cn/extend/plugins/qtranslate/