>The problem is with the CommandBuilder and not MMF. YOu will need to set the default values for each column that is not configured to accept nulls.

I ran some tests with SQL Profiler and found that the generated SQL command contains "iRecVersion = NULL" when RetrieveAutoIncrementPK = true. When RetrieveAutoIncrementPK = false, iRecVersion is not in the SQL command at all.