Proseries will not carryover a negative retained earnings automatically to the balance sheet so you will be out of balance. Above Schedule M-2 in the Forms view you need to check "no" in the second question about using automated Schedule M-2/Retained Earnings Worksheet amounts so that it does not carry over to the balance sheet.  Then you need to manually input the correct negative retained earnings number on the balance sheet.  Or you can adjust additional paid in capital or capital stock but I think technically you are not supposed to decrease those accounts, especially capital stock.