When trying to efile, received message, "The submission is a duplicate of one that was previously received".

[finance11]

As the subject line says, TurboTax rejected my file.  Obviously, I checked Check E-File Status, the message there says, "You Haven't E-Filed a Tax Return Yet".  

Any thoughts on how to reset/fix, etc.?

[CatinaT1]

It's possible you have been a victim of identity theft, if you haven't filed a return.

Unfortunately your only option will be to paper file your return.  I would also suggest you Complete IRS Form 14039, Identity Theft Affidavit and mail it along with your return.

More information can be found here:

Identity Theft Guide