Well here's a new one on me; Today I entered an order to sell 23 contracts @3.00. The current ask was 3.10. After sixty seconds 10 contracts @ 3.00 display on the ask only to be immediately over ridden by 55 @ 3.10. This continued for about an hour. They would display 10 @ 3.00 but immediately jump on top and display at 3.10. IB called the floor and here is the floors response; Dear Trader, Spoke with the floor staff and the order was a working order at all times. Auto quote takes precedence over orders in the books. Sounds crazy, I know. I requested that we book a complaint to the broker that was working the order. Please note that we did register a complaint over this. Thanks for your patience, IB Customer Service Anybody run into this one before?