i18n Starting point

[mvlcek]

I suppose you have both get_navigation and get_i18n_navigation in your theme. Remove get_navigation.

You were correct. There is definitely improvement, but the menu shows all items at the same level despite the fact that the i18n menu structure and viewer show them correctly.

Your css style sheet does not seem to differentiate between the menu levels. You must update it to style #menu ul li differently than #menu ul ul li.