The popular items menu on www.nfpn.org (displayed in right side bar) has sub-menu items defined. When someone navigates to a top-level page that's represented in that menu, I'd like for the child items to be displayed. I've played with various mod_mainmenu settings for that menu (in the modules section) without success.
How would I get the appropriate sub-menu to expand?
I'm using Joomla 1.5.21.
Go back to the module settings for the menu, is your End Level set to 0? If so that needs to be changed to 1.
If you have it set to 1 then under Menus > youmenuname do you have those links as child links (sub links) for the menu item?
The site had multiple menu items in different menus pointing to the same page. After removing all but one of these menu items, the sub-menu began expanding as it should have.