before transact did business with trademaven, they had a very nice trading platform and still do. its just when you down load trademaven, eeryone seems to use trademaven. the gentleman from velocity is correct. have your computer generated order number, call your broker and ask them to immediately call the cme for your exact position. thats what will stand up if they give you information that causes loss because of their faulty information. don't trust anyone except your broker/cme and if they are wrong they will pay. make sure you set up your computer so it displays that very important order #.