@ newyorker
ADDENDUM:
In addition to the info I left you above, you didn't mention anything about the Federal return. Has it been filed already, and was it efiled or printed, signed, dated, and mailed?
If you mailed the Federal return, then you cannot efile the state return. It would also have to be printed, signed, dated, and mailed.
If you have efiled the Federal return first separately, has it been accepted? You cannot efile a state return separately until the efiled Federal return has been accepted.
If you haven't yet filed the Federal return at all, you can efile both the Federal and state returns at the same time.
