Overflow checks and positive pay

We cannot get overflow checks to show up on the R12 'Positive Pay File with Additional Parameters' report. For example, we have three checks generated to pay all the invoices for one supplier. Checks 150053 and 150054 are the overflow checks and they are marked as 'Void'. Check 150055 is the check showing the total being paid. When we run positive pay, the only check that shows is check 150055. In R11i, our overflow checks were included in positive pay. Does anyone know if this is intended funtionality in R12 or there some setup that would allow overflow checks to be