I found this link ( http://l10n-status.gnome.org/gnome-2.18/PO/gnome- media.HEAD.pot ) when googl'ing, which may help to trace the problem back to the source code that actually uses it. I will do so myself if time permits...
-- "Your audio capture settings are invalid. Please correct them in the Multimedia settings." is a really unhelpful error message https://launchpad.net/bugs/61211 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
