I have a stock sale that qualifies for the 100% exclusion on gains under Section 1202 (Qualified Small Business Stock), but TT is not recognizing this. Help.

I have included all of the relevant details on the Stock sale section under income, and I correctly specified that this was Small Business Stock, but TurboTax is still calculating taxes due on the gain, where it should have a 100% exclusion. I've gone through entering this about 10 times now, and I have not missed any option. Help would be greatly appreciated.