Retirement tax questions

I have a Roth IRA from Fidelity.  They always enter T in Box 7 and TurboTax assumes that means the distributions are Massachusetts taxable.  However, it is a Roth which fully meets all the criteria you have listed.  Distributions are not taxed in the Federal return and the original conversion was held for over 5 years before the first distribution and I was well over the 59 1/2 year mark.  How do I override the TurboTax taxability entry?