Deductions & credits

In fact, Forms mode won't let me correct the "Schedule A".  It sends me through to the "Home Int Wkst".  There, I enter the correct data, and then TurboTax goes and miscalculates Schedule A.  There seems to be no way to get points to show up on line 8c and not be duplicated on line 8a, resulting in double the correct deduction.  :(