Yes, if you enter part of the state information in TurboTax, the program will insist you enter all of it, even if it doesn't apply.
I am assuming you are having trouble with Form W-2 entries. If it is something else, respond back with details of what you are working on.
If box 17 is blank or zero on your W-2, you can leave boxes 15, 16 and 17 blank. Not zero, just blank.