Form 8615

I'm sorry my explanation wasn't more clear, as I posted about this several days ago.  I have a child who needs to file Form 8615, because of unearned income over $2,200.  His parents filed their return using Sch J, Income averaging for farmers to calculate their tax due.  The Form 8615 has a worksheet to fill in when Sch J is used to figure the parents tax.  Form 8615, Line 9 says it will automatically calculate the tax due either using the Sch D/Qual Div worksheet or Sch J.  With all worksheets filled in, it says the parents tax using Sch J is $0, which is not correct.  The child should owe tax on his cap gains/qual div at the parents' 15% rate.  If I use just the Sch D worksheet and skip the Sch J, the tax is figured correctly.  However, it will not match what the parents' return says for their tax due.  I am wondering if anyone else has this problem, if I don't have a worksheet filled in correctly, etc.  I tried to call tech support this afternoon, but did not reach anyone.