THE OPEN May beans:  12 1/2 lower May meal:  3.30 lower May soyoil:  51 lower May corn:  3 1/2 lower July wheat:  4 3/4 lower Negative macro sentiment and a higher US dollar pressured prices from the start of the day.  Negative technical signals on the charts provided a catalyst for funds to come in as sellers at the open.   In the soy complex, sharply lower soyoil prices weighed on beans as key levels were violated.   Corn prices were pushed to new contracts lows as well, with more selling coming into July and December contracts.  Increased end user pricing was reported as prices drove lower today, as consumers have done a good job of letting prices come to them which is very cha...