By automatic shipping adress, the ordering doesn't work

[zrita]

Hi all,

I use Joomla 2.5.22 and Virtuemart 2.6.6.

I have a problem by shopping cart. If I choose that the shipping adress is same as billing adress I can't continue the shopping. After clicking on the  ordering button, nothing happens.
When I added manually a new shipping adress, i can click the button, and receive the confirmation of the ordered product. What can be the problem?

(Here is the website : http://www.csuszogyurustomites.hu/kosar, but it's Hungarian)

Thanks for your help in advance

[GJC Web Design]

3rd party checkout - contact the developer....