My locale is french canadian. In cups-manager, default papersize is set to letter and it works for all applications I try (gedit, firefox, ...) except openoffice.org2. When I open a new document in Writer, Format>page>page>format is correctly is set to letter but File>print>properties>paper is set to a4. So I have to change it each time I want to print.
I try to edit /etc/papersize from a4 to letter, but it doesn't change anything.
Note: the original reporter indicated the bug was in package 'openoffice'; however, that package was not published in Ubuntu.