OK - figured it out. DMERTZ - you were on track for your tip to check form 8606. Those numbers were quite hosed up. I have no clue how they got where they were. When I made some quick changes (trying to deduce the terminology for some of the lines) - it all came back to 4a being the same as 4b. As I had thought - what was happening made no sense. Thanks for the suggestions!
