Why does Turbotax tell me 'cash distributions should be blank because you have checked the box...'

In Turbotax Business, when I enter distributions because I took money from my business last year (all of it) it says "cash distributions should be blank because you have checked the box NOT to compute Schedule M2 and/or not use the Schedule M2/Retained Earnings Worksheet. Enter distributions and/or dividends directly on Schedule K lines 16d and 17c.

I don't know what box they're talking about that I supposedly checked. And isn't Turbotax supposed to enter that on line 16d for me? I have also noticed in for the 2 previous years, my distributions were not entered on the form either, so now I have to amend that. Why is Turbotax not entering my distributions?

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