THE OPEN May beans:  8 lower May meal:  5.30 lower May soyoil:  27 higher May corn:  4 1/4 lower May wheat:  10 3/4 lower The markets opened as called with early weakness a consistent theme for the day, particularly for beans.  However, higher crush margins and firmer basis levels invited more buying today for beans and meal despite opening weakness.  The markets that were beaten up the most found support amidst short-covering activity, namely soyoil and corn.   Soyoil held its gains over meal as weaker oilshare firmed on profit-taking.   Corn found more short-covering when prices moved through key resistance which triggered buy-stops.   In terms of positive news for th...