I have the same problem. In my case, Form 2210AI Line 27, column A is DOUBLED when it's sent to form 2210 line 10 column A. As a result it calculates a penalty, which shouldn't exist for me.
I called TurboTax support and the first person said I could over-ride the number on Form 2210. That's true, but then you get a form error and can't e-file. So after about 90 minutes they had me send a "diagnostic file" to them and created a case number for this problem for me.
Hopefully they can fix this soon. If we get close to April 15, I know I can just print it out with the over-ride and submit via paper. But that's a crappy solution.
