Posted on: June 01, 2014, 10:54:56 PM
You have over 6 third party scripts on the sub page active where the menu isn't dropping down properly. One of those is going to be causing a conflict with the menu system. The fact that the menu system works on the Home Page confirms the menu system is functioning properly.
You would need to disable any 3rd party scripts on that page until you determine the culprit.