Hi Terry
I'm confused because you said v19 which is a Classic (*.MYO) version and doesn't use libraries - have I misunderstood which version you have been using? if you are on v19, and your confirmations aren't working then contact FGH Tables. If it is actually v2019 then that's a different issue, and there could be a problem with the latest version being downloaded on your system when you don't actually need it. Up to v2021.1, there were no auto updates and if you have a Perpetual Licence, you can continue confirming and using this version as long as you uninstall more recent version/s. Accessing the offiline file does not require a Browser login for these versions - just open My Library to find your file.
Cheers
Liz