ProConnect Tax automatically optimizes between income and sales tax deduction for Sch A.  You may, therefore, like to review your numbers again.

In terms of input, go to Deductions > Itemized Deductions (Sch A), click on the Taxes tab, and check your entry for the first line (i.e. 1=force income tax, 2=force sales tax, blank=optimize).  It should normally be left blank.  If you are seeing sales tax deduction when actual state income tax is higher, you have probably entered a 2 to force the use of sales tax.