I discovered the problem to be the following: When I first answered the HSA account questions, I entered half of the total I contributed in each of me and my wife's entries. When I realized that this generated two Form 8889's, I unclicked my wife and put all of the contribution in my name (since it is my HSA account). Apparently, TurboTax still carried the amount I erroneously entered in my wife's name even though I had unclicked her name. The problem was fixed when I clicked on my wife's name and forced a zero contribution amount for her.
