Get your taxes done using TurboTax

I have had this problem with TT for several years.  I always pay estimated tax that is in excess of last year's tax paid.  The first year it happened to me I paid it because it slipped through the cracks and I didn't catch it.  Since then it has happened several times but not always.  This year it says I owe $2 penalty.  All estimated payments were made on time or early and the total was in excess of the amount of tax paid last year.  The annualize step should be unnecessary since the IRS rule was followed.  I have had several CPA verify that no penalty was due.  

Why do I need to check this simple step for Turbo Tax every year?  What can be done to avoid it besides doing the extra work of the annualization?