XF 1.4 Tab Drop Down Links

When you click on a tab in the menu it will display that little arrow if there are sub links, but the actual links don't show unless you get your curser right on top of that arrow.

How do I get the sub links to show immediately when the parent tab is highlighted, basically when you put your cursor in the spot I show here: http://i.imgur.com/pAbGPpa.png