Hi, I think I have figured it out, and I'm posting in case this helps anyone else. I had gone back and doublechecked my W2s, which are correct. BUT: I imported them electronically using the control number, and two of the W2s (from different employers) imported Box 18 incorrectly. The figure in Box 18 was the State Income Tax figure, repeated. I re-imported one W2 and changed the other one manually. Hopefully I can proceed from here! I guess the lesson is to doublecheck every figure after importing.
