Did you double enter your contributions? Contributions made by payroll deduction are listed in box 12 of your W-2 and picked up automatically by TurboTax. This includes both employer employer match, as well as your own contributions by payroll deduction. Later in the program when you are asked about additional contributions, you should only list contributions that you made out of pocket and not through payroll.
Also, you must indicate that you had qualifying insurance for all 12 months of the year. You may need to review your W-2 and the HSA section to check your answers.