conditional logic causes bug

Hi,
I tested this in version 1.4 and Version 1.5.rc3.4

I have a form with conditional logic on 2 dropdown fields.
The form is in a text widget as a shortcode and appears in a modal window.

when the page loads there is a javascript error :

Firebug's log limit has been reached. 0 entries not shown.		Preferences
gf_apply_rules is not defined
[Break On This Error] </div><script type='te...11: [11]}, 'animation' : 0};</script>

if I remove the logic, the error disappears, but the submit doesn't work??
if I use a simple form, it works fine.

I really need to get this working as it is a requirement on a client project

the site is : http://sandbox.sideradesign.com/about/

I can also provide the form XML export

thanks

wow cool, that seems to work now!

thanks -