I can't file my state return for some reason, and it won't let me make any changes or see what's wrong. I want to efile, not mail it.

State is IL. At one point it told me my ssn on Federal did not match that on state, which I don't see how that is possible, since I've used Turbo Tax Deluxe for the past eight years and have had the same employer for the past six. It gave me a chance to re-enter the SSN on the federal but I'm totally hosed on the state one I guess.