The big themes from Tuesday’s CBOT trade were that wheat continues to find slow, cautious support amid a weaker U.S. dollar and troubles in Argentina while steady corn and soybean ratings resulted in muted trade for the latter two commodities. Corn futures drifted lower as specs are neither willing to chase rallies nor breaks while soybeans ended unchanged with fresh export sales to China offsetting the favorable crop conditions data. Overall, it was a relatively light news day for the commodity sector and the trading volume and action reflected this. The biggest moves came in the cattle markets, where futures scored $4+ losses on weakening beef values that are threatening to undermine packers’ recently improved margins. Funds a...