Yeah i tried that. Same result.

                    <div style="float: left; id="bx-menu-toolbar-1-container">    
                        <bx_menu:sys_toolbar_site />
                    </div>
                    <div style="float: left; class="bx-menu-switch-language-inline ">    
                        <bx_menu:sys_switch_language_inline />
                    </div>    

This one worked though.
But the flags position themselves up in the top. i would like them in the middle.
I guess I have to find where the class of the flags is defined.