As long as you have gone through that section and answered the questions properly, you're return will not be affected.
There are a few places within TurboTax where you must answer
the question every time you go through that section. The question about regular payments from a
retirement account just happens to be one of those sections.
The answer is used only to determine what question to ask
you next, it is not necessarily a piece of information that is recorded and
reported directly on a tax form.