Has anyone experienced IB's system placing orders without the trader entering them, or changing order types . I was trying to widen the EUR bid column in TWS and an order was placed to sell 25k EUR. Last week I had an OPG order in on LVS and I THINK the system changed it to day at some point. Use of the "Audit Trail" to evaluate these problems involves a bit of circular reasoning since if the system entered or changed the order it would show up. Does anyone know if IB's software contains a keystroke logger?