Other things to check (just shooting from the hip) Are all strings "properly" formed

"this is a 'String' "

Are dates strings? or objects? What does BCP expect? I tend to always make sure that the date is in YYYY-MM-DD format - regardless of your regions conventi0on. DB's always "just" get the monthh and date the right way around - if you use YYY-MM-DD format. Do you have commas "," in strings? In that is a COMMA a delimiter - and thus "mucking up" count of expected values?