Quote Originally Posted by idako View Post
Are you using NoScript? or anything else that blocks javascript? I heard some people had issues because of that.
This was my issue, and the script I needed to allow refused to make itself "see-able". I had to turn off NoScript, make the transaction, and then turn it back on after. Any browser security settings that block JavaScript will definately stop your transaction with an error. The error unfortunately states that your card failed, when it was never actually processed.