How can I translate the other menus in pawtucket?
(in ca the main menu was translated when I chose preferences->locale but no similar option in pawtucket....)
Yes. copy the locale(s) you need from themes/default/locale to your own theme and the edit it. Editing would involve using an application such as POEdit to scan your theme for translatable text and then add relevant translations.
I'm using the default theme.
How can the user select language ?
The upper menu (About, Browse, Advanced Search etc) doesn't seem to translate?
Have you enabled more than one locale for cataloguing?
Yes, thank you, I have and I entered translations in themes/default/locale
But how can a visitor switch language?
Do you have more than one location set as available for cataloguing in the back-end (Providence)?
Yes, there are several available cataloguing locales available in Default cataloguing locale