Quicktime 7 Pro - toggle Text Track

In Quicktime 6 I was able to use the following sprite to toggle the Text Track on and off without going through the properties menu. It adds a CC button that you press that turns the Text Track on and off.

In Quicktime 7 Pro the button appears and you can press it, but it doesn't toggle the text track on and off, and you can't change the name of the Text Track.

Is anyone out there familiar with this, have any ideas how to make it work, or familiar with another program that does the same thing with Quicktime 7 Pro?

Thanks.