[Plugin: Twitter Tools] Drop down menu doesn't work when plugin active

Hope someone can help, I really like this plugin and I really like my theme, I would hate to have to switch either. My site is firesafetylabs.com

I had noticed that a menu item on my main page would not activate its drop down subcategory list when I moused over it. I seem to have traced the error to the activation/deactivation of twitter tools. I now have it deactivated so the menu will work. Anyone have any suggestions? Do I have something configured incorrectly that could cause this?