Get your taxes done using TurboTax

TT has always somehow implied that the program would bring up Box 8 amounts later, but never does.  You have to recognize the situation and deal with it.  As to the "no change" in refund, that can be the case if you're in the lowest two tax brackets as LTCG taxes are 0% in that situation.  You should confirm that's the case by printing out and REVIEWING your income return before you file.