In migrating a Drupal 6 site with simple drop-down navigation menu to Drupal 7.56, I have not been able to get the drop-down menu to work. The D6 drop-down menu worked under the Acquia-Marina theme simply using the Menu module, but recreating the menu from scratch in D7 with Acquia Marina 7.x-2.0-beta1 did not work.

I also tried using Fusion Marina 7.x-2.0-beta1 as the default theme and this did not work either. After additional research, I tried reconfiguring with Superfish (7.x-2.0), Superfish library (1.x), Fusion Core 7.x-2.2, and Fusion Accelerator 7.x-2.x to no avail.

The primary menu tabs display in the Main Menu region, and helper text displays on hover, but the child menu elements are not displayed either on hover or by clicking the top-level tab.

I am surprised that Drupal 7 does not do drop-down menus “out of the box” and would appreciate any guidance in configuring this functionality with either the Acquia Marina or Fusion Marina themes. Thanks.