I have populated the navigation menu on the pda template (on Joomla 1.7) and have found an issue with the submenu items.
When I click on a submenu item, and the page reloads, my submenu becomes my main menu and the main menu disappears on that page. If I use the 'Home' button at the bottom of the page, I can get my full menu back. However, this happens with every submenu item. How do I keep my top-level menu visible on pages that are linked from the submenu (and prevent the submenu from becoming the main menu)?

Thanks in advance for your help.