Quote Originally Posted by MrSteeiii View Post
I need help, i am getting "Your order's details have changed. Please review the current values and re-submit." error message.
I am using zencart 1.5.5e . Can some one help me?
Sure, but I'll need a little more information:

What version of One-Page Checkout?
What template are you using?
What payment-module was chosen?
What shipping-module was chosen?
What order-total modules are applied to the order (before you click the Submit button)?
Was the order being placed for a customer with an account or was this using the Guest Checkout?