Text animation button grayed out

Hello,

I am seeking some assistance please as a new to Captivate user!

I am trying to apply text animation and the box in my dropdown menu is grayed out.  I can see "text caption" and "text entry box" but not "text animation".  I can also see the files in the Gallery where Captivate is downloaded.

I have looked up previous questions and tried putting all text on one line and highlighting it.

If someone could point me in the right direction that would be great.

Thank you

Liz