Shipping to a Different addres not working

hello. thanks for all your support. everything is working fine, except when customers want to ship to a different address. it works, but you have to change it and click it many times. the first time it doesn't. I do not know what is happening.
here is my link. it doesn't work the first time.it will not save it. you have to keep adding a new address.

www.telegraphhill.com/womens-robes-seersucker-cotton-robes.html

Hi,

When the billing address and the shipping address are the same, the checkbox "Use the same address as for billing" is automatically checked.
So, you have to uncheck it and select another billing address.

When I tested it in your website, the shipping address was saved correctly, for me.

What is you "click it many times" problem ?