GNOME panel editing

Hi!

I am having difficulties trying to set up desktop panels as I want. Somehow I changed original layout and now I can not set up the panels the way they originally were as everything I add on a panel gets aligned to the left, i.e. I can not add "indicator applet complete" to the right side of the bottom panel. It is not possible to drag-and-drop panel items or separators. Maybe I am missing something?