I'm not sure I qualify for the American Opportunity Tax Credit. I used a 529 account to pay for my tuition, but it says I'll get a $1,000 credit.

[KrisD]

If you entered the 1099-Q first, and then the 1098-T, the program may tax the distribution in order to claim the credit if the credit is worth more that the tax. 

You can check by going back through the "Education Information" interview located on the "Here's Your Education Summary" screen. 

(Click Federal, Deductions & Credits, scroll down to "Education" click Edit next the student's name, finish that interview)