I have been using Turbo Tax for more than 30 years and this is the first time I ever had to file Form 2210 and at no point in the year was I underwitheld when both normal witholding and estimated payments were made and combined. This same error apparently occured in the down-loaded version (without CD). Very frustrated as Its imposssible to adress this issue "live" with a technical suppost person. I guess I should expect a problem like this once every 30 years when you only pay $100 to have a semi-complex return completed by a third party.
