diff -aur kupfer-v208/kupfer/core/settings.py kupfer-v208.modified/kupfer/core/settings.py
--- kupfer-v208/kupfer/core/settings.py 2012-06-01 10:51:14.000000000 -0700
+++ kupfer-v208.modified/kupfer/core/settings.py    2012-11-21 14:48:11.876592441 -0800
@@ -393,6 +393,8 @@
        """
        Get a list of (id_, name) tuples for the given @category_key
        """
+       if not category_key in self._alternative_validators:
+           return
        validator = self._alternative_validators[category_key]
        for (id_, alternative) in self._alternatives[category_key].iteritems():
            name = alternative["name"]
@@ -400,7 +402,8 @@
                yield (id_, name)

    def get_all_alternatives(self, category_key):
-       return self._alternatives[category_key]
+       if category_key in self._alternatives:
+           return self._alternatives[category_key]

    def get_preferred_alternative(self, category_key):
        """