It's only a data link library file  for system  running
screen display. But you are correct, I never believe
it. Some professors told me long ago: "every day you
learn a new thing and when you died only thing you can
take with you is knowledge. If you happen to reborn
again, you will be a wiser person." Whether it is
true or not, time  will tell.

It's wonderful. We both learn something new today
because it is hard to accept an organization putting a
product out without thoroughly testing. Sometimes due
to marketing pressure the product slipping through
testing, but that is once in a blue moon.