Direct Debit Amount

The Federal Information Worksheet, Part V, will not let me enter the
"Balance-due amount from this return". Nor is it automatically carrying forward Form 1040, line 37 ("This is the amount you owe"). The box to select direct debit has been checked and the bank routing and account numbers are correct.  The filing instructions show that the federal return will be electronically filed, but that I must mail my balance due with a check and payment voucher, 1040-V. I also have a balance due with my state return, but did not have this problem with the state return.  I am using TurboTax Premier desktop.