Should I try the modified AGI that I found on form 8582? The one from line 38,form 1040 was rejected.

Why can't I speak to a live agent? I paid for that.

Get your taxes done using TurboTax

That won't help.

AGI mismatch is a common problem for many TurboTax e-Filers. The reason is a mystery.
If you don't have at hand the self-select PIN you invented last year, you'll have to file on paper via US Mail.