Thank you, Catherine. I've re-, re-, re-reconciled the amounts from SK-1 to the 1-NR/PY input and simply cannot find a discrepancy. I.e., 1-NR/PY's Line 9 equals the Schedule E line 58, whose lines 28 - 31 faithfully reproduce the SK-1. Net result line (32 and 35, with no tinkering, flowed into) 55; line 56 is adjusted with a statement to tie exactly to SK-1's line 3.
Then I use 1-NR/PY's line 14e worksheet to tie to SK-1's lines 9 and 17 (other interest and dividend income, and net long-term capital gain). ATX has always confused things at this stage, flowing non-ordinary income to 1-NR-PY's line 14c, not separately to both lines 14b and 14c. Hadn't mattered in *all* years before this; but, yes, as 14b is labeled Interest income, perhaps that's what's caused FNRPY-0075. However, what actually feeds 14b appears to be only aggregate flow-through income on line 9, page 2 -- but that should be only ordinary income, yes? (Jump-to also ties to page 1 but no line there -- and what for, anyway?)
Oh, and, yes: MA's Schedule B amounts DO tie to the 1040; so that its line 9 matches 1-NR/PY's line 14c.
Does that sound like I've made ATX obey MA's forms? I really appreciate your response, and hope I'm not abusing your solicitude with this rejoinder. Kurt