I have some questions on IB. Thanks in advance for your answers. 1)Say I have 600 shares and I place 2 sell orders for 300 and 400 (total 700). The 400 is a mistake and should be 300. The net result is that I will be selling 100 shares more. Is there a way to configure IB so that I am warned in advance when I make a mistake like this when placing an order. 2)Why does IB give incorrect volume on otc stocks? Many times it reports twice the volume that is reported on Yahoo Finance or my other broker. 3)IB reports incorrect volume when there is a momentary quick surge in trading in a stock. The volume goes way off but after a while gets set to the correct value reported by other sources. I have been noticing this quirk only recently.