What am I missing?

I have a single checkbox with values "no" and "employee" that I want to use as a controller. I have several other fields inside a fieldgroup called "employee info" that I want controlled. On the fieldgroup settings, I have selected the "employee" option as the affirmative one that should show the fieldgroup. However, the fieldgroup is always shown regardless of the state of the checkbox. The messages indicating that one is controller and one is controlled show up on the "manage fields" page as expected. I have played with the fieldgroup's "style" setting and adjusted it from "always open" to "collapsible" to "collapsed" with no effect. I have tried to "require" the checkbox and not require it with no effect. I have changed the widget type of the checkbox to radio button with no effect. I have tried to adjust all fields within the fieldgroup to also be controlled by the checkbox, but that didn't work.

What on earth am I doing wrong here? It seems like I have the settings all right. Help!