We are sending a client's receivable to collections. When we print the Accounts Receivable list or the client receivable history report the Client's A/R balance on the screen does not match the total at the end of the printed report? There are some old slips in the listing back to 1998. In the column to the left of the Inv No there is "CNV". What would cause the listing total to be different from the Client A/R balance, and what does CNV stand for?