Hi,
I'm using the Fast and Easy AJAX checkout for Zen cart. Everything works great, except for one thing. When I get to the payment page, after the shipping and billing address, if I try to click "Change Address" it just opens up a lightbox window of the same checkout page (not a page for editing my address).

Worse yet, after doing that, the customer cannot checkout because it keeps saying that no payment method was chosen, even though it was and still is.

Has anyone seen this, or does anyone have ideas? I'm wondering if this is something specific to my site and other modules, but I don't even know where to start.

Thanks,
TJ