Get your taxes done using TurboTax

Ok found it now comes the next question and I am totally confused by it.

I entered the interest earned as Morgage Interest under the Interest and Dividens area and the Installment Loan entry area also asks for Installment Interest.  When I enter the same interest information under the Installment it rasises my tax bill by $2000+.  Am I correct in my reading of Publication 537 that Mortgage Interest is for short term loan interest data entry while the Installment loan interest entry area is for multi year loan interest?  When I enter the interest information into one area or the other only my tax bill stays the same.  It only increases when in both areas and I dont want a blank line for interest under Installment loan.

Hope that was clean and not as confusing as I amm right now.