Description of problem:
Some elements of the gnome-shell present bad translations using the es_MX locale.
Version-Release number of selected component (if applicable):
Fedora 17 with the latest updates (08-23-2012), Gnome 3.4.2
The authentication modal dialog prompt displays, in the password field, and the removable drives notification display english text instead of the correct translations.
Steps to Reproduce:
1. Trigger an authentication prompt, and look beside the password field
2. Plug a device, eject it and look at the notification
3. All these using the locale es_MX translation.
Spanish (es_MX) localized text
I can include screenshots if you want
These are expected on GNOME 3.4 and Fedora 17. "Password" string issues are recently resolved bugs in polkit  and gnome-shell . Unfortunately, it doesn't look like they're going to be backported.
Eject notification comes from Fedora-specific patch , which can't be translated because of technical reasons. It has been upstreamed already, so it will be resolved in GNOME 3.6/Fedora 18.
Well, that explains everything, I'll wait for Fedora 18 then. Thanks!