Originally Posted by thesun

As what could be considered an "IT geek", it could be pretty hard. There are almost certainly many pieces involved in getting that little number next to the PZ. It's not like there's going to be a PZ.c file which has everything involving PZ inventory in one place. There error could even be a side effect from some other unrelated change. And in fixing the problem, they would want to try to make sure they don't break anything else.