THE OPEN Jan beans:  2 lower Dec soyoil:  31 lower Dec meal:  .50 lower Dec corn:  1 3/4 lower Dec wheat:  3 3/4 lower The market opened as expected with further weakness coming out of the soy complex led by soyoil.  Weaker wheat and correcting oilshare prices were major features of trade, though the volumes in general were so low that it was questionable if traders were trading or watching the Washington proceedings. Good conditions in South America are now weighing on beans with Cordonnier forecasting that advanced regions of Argentina corn planting was 92% to 95% complete, while northern and southern areas are behind at 30-60% complete.  He rated conditions 46% good/excellent.    Argen...