We have a database which was created using Access 2002.
It was then updated on someone else's computer, who has a more recent version of Access.
When I try to use it on my computer, I get "database is in an unrecognizable format."
So I converted it to 2002 format, using Tools | Database | Convert Database.
Now it gets past the error, above, but fails on "Trim" and "Left" commands, with the error Cant find project or library.