Are all of the locality boxes empty? Make sure that you do not have something in one of the boxes that is making TurboTax think that you should have additional information. Based on your question, double-check and make sure that Box 10a, 10b, Box 11, locality, and local income tax withheld all are blank.
If that does not work then, delete your cookies, delete the form and reboot your computer and then go back into TurboTax and re-enter the 1099-G.
