Lisa, you are not understanding what I wrote.

I FINISHED the 1041 return last week.  I DID NOT CHANGE anything in the return BUT the following week, when I went looking why is 8879-FID missing in my printed filing copy, I noticed that the tax owed changed. 

It is because line 3 in Schedule B changed.  if line 19 column 1 is ZERO, then line 3 in Schedule B should be zero.  A ProSeries software update caused the error.  Now my trust return is wrong and can't e-file it.