I am trying to pay my tax liability using charge card, when i select that option the scree goes blank
If you are trying to pay federal income tax then in the program simply indicate you will mail a check and then go to the IRS website to make the payment. FYI ... there is a fee for doing this and it is cheaper on the IRS site than thru TT AND your CC may also hit you with a cash advvance fee so check with them. https://www.irs.gov/payments