Strange menu problem

main menu module not show submenu items in some pages
take a look here
176.32.230.2/apostolou-ate.gr/index.php/en/
Main menu in home page shows submenu items (check "ΕΡΓΑ" menu item)
But if i follow a subitem link (for example "ΙΔΙΩΤΙΚΑ", first subitem) then in "ΙΔΙΩΤΙΚΑ" page, subitems aren't appear.



any idea?

Nevermind! Conflict with image gallery!