Soybeans are supposed to be weakening as the demand leaves North America and crops in South America continue to look good. The problem is that the demand has yet to shift south. General Comments Corn and wheat markets were steady to slightly higher in the Sunday night session with soybeans lower. That's how the morning session opened, but there was an old crop soybean sales announced (140,000 MT to unknown). The weekly soybean export inspections were again well above expectations, and the weather forecast in Argentina took the rain out for later this week. That started a resumption of buying in the soybean market that almost took the March contract back to $13. Corn and Chicago wheat meandered around most of the session with little change...