Thread: Drop Menu Not Working

I would like to have the drop menu on the navigation bar. I have two styles, the default vBulletin style and a custom style that I use as my default style on the website/forum. I've enable the option to have the drop menu automatically load to the left of the navigation bar. The drop menu shows up on the default vBulletin style but not my custom style. I've tried adding it manually but it will not work on the custom style. The custom style is just a copy of the default vBulletin style, with colors changed/modified. Any ideas?