Checkout doesn't proceed from shipping to payment options

Hello,

I'm setting up a Zen Cart store and I created a customer account to test it. I have a problem, though: during the checkout I can't go from the shipping options to the payment options - I click the link to the payment options page, but it loads again the shipping options. However, if I change the url from "/index.php?main_page=checkout_shipping" to "/index.php?main_page=checkout_payment", it works. But obviously, I want it to work the right way, so I'm requesting your help. :smile:

However, if I change the url from "/index.php?main_page=checkout_shipping" to "/index.php?main_page=checkout_payment", it works. But obviously, I want it to work the right way, so I'm requesting your help.
We need your help
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You described your issue well, but as our samples do not exhibit this issue we need a link to your site