When placing an order on my magento store as a logged in user, when I click "complete purchase", i'm redirected to an empty shopping cart page instead of the "order received" success page. The order actually goes through and I get my order confirmation email, but it's confusing for the user to not see "Your Order Has Been Received". It doesn't seem to happen when placing an order as a guest. Any ideas on what would cause that?
Possibly useful info: -just rebuilt my site on a fresh install of 1.8.1 and imported all my order/customer history. -placed order through authorize.net payment method