And I found the answer to my own question by reading the IRS instructions for form 4562. This tax return is for a trust. Trusts and estates are not eligible for 179 deductions. I wish the step-by-step screens had made this clear so I wasn't left scratching my head about why I couldn't do it. I really hate it when I have to read the instructions.
Also, I think the other replier was using a different version of Turbotax than I am (mine is the business one for partnerships, corporations, LLCs, and trusts & estates, not the Home and Business version), so the question screens don't match. I still appreciate the effort.
Hope this helps someone else.
