Workaround:
Know that the *.odb-file is really a *.zip-Archive that contains all the settings. Open and edit it:
- Rightclick on *.odb - file
- Open With File-Roller (German: Archivverwaltung) or any application that opens *.zip files; you should see a datastructure now with folder "Configurations2, folder “forms”… until file “settings.xml”. In the middle you see file “content.xml”.
- Open file “content.xml” with any simple text editor (in my case: xed).
- Search for db:is-password-required.
- You’ll find: db:is-password-required=“true”.
- Change this to db:is-password-required=“false”.
- Save and close file “content.xml”.
- Close file-roller or whatever you unpacked the *odb-file.
That’s it. Now you can open your database without entering a password and, if you want to check, the field “Password required” in the configuration window Connection settings (Get there by: Menu | Edit | Database | Properties) is unchecked. But beware: if you check “Password required” it does change the settings, and you may have to go through the above steps again.
This answer is for a Linux system. But, according to another user the problem and the solution is the same for a Windows computer.
(This is already filed as bug 97416, so it does not have to be filed again.)