**IMPORTANT:** **Customer Registration Fails when using generic Magento 5-step checkout.** **This issue is only presented when we ENABLE form key authentication.** Version used: 1.7.0.2, but looks like someone has posted that same issue occurs on 1.9.3 version too. When Go to checkout, we are presented with 2 options: CHECKOUT AS A GUEST OR REGISTER Once click "Register", and fill-out the form along with password, you proceed throguh all steps and complete the order. Order gets placed, BUT customer never gets registered in magento. When I went back and Disabled form key authentication, and tried placing order while registering as a customer, it got placed without any problems.