Deductions & credits

I'm using the CD & it's not fixed.  I seem to be able to get it to work on the federal return, after I override the figures, but when I run the STATE check it shows an error and also changes back to the wrong amount on the federal.  Our form shows $300 in the space to the left of 12A and that's where I guess TurboTax should show $600 for MFJ.  Line 12B shows our contribution of $320.  I've tried putting in $300 for the contribution & that doesn't help.  (I'm beginning to hate TurboTax.  I understand taxes and I can do them faster by hand.  Every year I run into some bug that I spend hours on.  Why doesn't TurboTax at least, fix a known one like this?)  If I can't fix this, I may remove the contributions and then amend, if that works.