Unable to use forms inside colorbox

Hi,

I'm unable to use forms inside colorbox using TB Sirate. I have tried following things:

• Use the modal forms module for loggin in
• Use colorbox node to open a webform
• Use colorbox node to open a custom made form

The colorbox window openes but the form never loads. Regular nodes work fine using the 'colorbox-node' module. When I change the theme back to Bartik this works fine.

I hope someone is able to help :-)