FCK Editor Error

> I'm getting an error when I use the FCK editor, although if I  
> dismiss the error window, it seems to work okay. I'm just doing this:
> <xforms:textarea bind="body" mediatype="text/html">
>     <xforms:label>Body:</xforms:label>
> </xforms:textarea>
>
> which causes this:
> You may want to try one of the following:
>
> • Close this dialog and continue to use this page.
> • Reload this page. Note that you will lose any unsaved changes.
> •
> If the above does not work, try reloading the page yourself. Note  
> that you will lose any unsaved changes:
>
> • With Firefox and Safari: hold down the shift key and click the  
> Reload button in your browser toolbar.
> • With Internet Explorer: hold down the control key and click the  
> Reload button in your browser toolbar.
> • Return home.
> <section-closed.png>Show details
>
> <section-opened.png>Hide details
>
> Exception in client-side code.
> • Message: FCKeditorAPI is not defined
> • File: http://ekb.osera.gov/orbeon/xforms-server/xforms-htmlarea-min.js
> • Line number: 240
> Am I doing something wrong?
>
> Thanks,
> -Jim
>