well... the functionality DOES exist on ET though: "xxx has chosen not to receive private messages or may not be allowed to receive private messages. Therefore you may not send your message to him/her." i could attach a screenshot but... Baron?
No wonder you still haven't reply two of my PMs. Message overload? Anyway, since you're busy i can look up the forex stuff myself.
You can disable private messages by going to your account options page at http://www.elitetrader.com/vb/member.php?action=editoptions and select "No" for the option labeled "Enable Private Messaging".