After today's software update, there is a box on Screen 15 Current Year (just below the box you pointed me to the other day) where you can now override the Part II line 4 calculation!  BUT I put in my override and so I have like $90,000 in line 3 and $47,000 in line 4.  Then line 5 says to enter the lesser of Line 3 and 4 and Lacerte puts in $4000 (what they were previously calculating for line 4).

So still not a fix.  I will try the calculation challenge link they gave me.