When receiving against a PO, we notice that periodically the total of the document amount on the detail page tab is not carried over correctly to the "Total" page tab in the base and total payable boxes. The detail page totals all the receipts and we match it against our invoice. But when we go to the Total tab to put in invoice date, number, terms, etc. it has not carried the total over correctly. If we go back to the detail tab, and then return to the total tab, it fixes itself. Is this a bug, or are we inadvertently doing something.