Thank you for your help. I've had a frustrating time but I finally got it to work. Here's what I did that worked that may help other people in this situation.
1. The box to indicate my son was a dependent wasn't checked on the personal profile but I kept getting the message that could be the reason he didn't qualify for the AOC. It's possible that, at some point, in completing the return that box had been checked and then I had gone back and fixed it but TT didn't register the change. The only way I was able to get TT to recognize that my son wasn't a dependent was to completely start a new return. It was a pain but it worked.
3. It is confusing if the scholarship income and tuition expenses should be entered as Misc Income (under Wages & Income) or in the Education section (under Deductions & Credits). I entered the numbers as suggested and then adjusted to find the sweet spot. The only way I could find to change the numbers around was to delete the 1098-T worksheet under Forms in my Return. Every time I deleted it, TT let me go through the interview section of Misc Income again and enter new numbers. It took some time, but it worked.
