IB has new way to reject orders. Your order has been rejected. The gross value of the outstanding orders is greater than the current allowable multiplier of net liquidation value. Please call the Trade Desk for further detail. In German Forum they guess its a bug in security system, because the rejection happens and limiting your orders in a way out of logic. E.g. it happens also for closing orders, or if you use only 5-10% margin of Net Liquidation Value, etc.... Hope it will be solved soon. Anybody else?