Using WP v3.5.1 with v3.6.5 of Admin Drop Down Menu plugin.
Conflict is with the following Slideshow plugin v2.2.11
When in the dashboard admin menu, if you click on Slideshows > General Settings there are two tabs that do not function when your Admin Drop Down Menu plugin is active. The DEFAULT SLIDESHOW SETTINGS tab and the CUSTOM STYLES tab. When I deactivate your plugin, these tabs work fine.