The fact the line 4b has $145 more than the amount shown in box 1 of the Form 1099-R associated with the rollover suggests that you have also entered another Form 1099-R that is contributing to the total on line 4b. Take a look and the TurboTax's 1099-R Summary in the pdf of all forms and worksheets.
I agree with macuser_22 that there are no known problems with TurboTax handling the reporting of rollovers.
