I'm having the same issue. Turbotax entered an amount in the "income" gain section (3a) and it entered the same value in the section 3 loss amount. It will not let me zeroize the loss section (there was only a gain for the business)....I cannot file my return. The only section I can edit is line 3a and if I put 0 it also does not work....however, even if it were to accept the zero for 3a....that would be wrong because I had a gain not a loss.
