Retirement tax questions

It seems like that is the problem, but I'm doing what I am supposed to based on the questions TurboTax asks me.  So the question is where am I going wrong in TurboTax and how do I fix it?  Somehow my $6000 entry for the 1099R says it is taxable even though I know it is not, but cant figure out how to tell TurboTax that.