The file gnome-netinfo/callbacks.c contains a non-ascii character that
causes many warnings from xgettext when I update the sv.po (which is in
UTF-8) with "intltool-update sv":

xgettext: warning: The following msgid contains non-ASCII characters.
                   This will cause problems to translators who use a
                   character encoding different from yours. Consider
                   using a pure ASCII msgid instead.
                   (c) 2003 Germán Poo Caamaño
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence
xgettext: invalid multibyte sequence


Also, the character will not be displayed in the msgid in the po file,
it will simply be an extra space. Thus, this message cannot be translated
correctly as it is.

msgids always have to be proper ASCII. For further reference, see
http://developer.gnome.org/doc/tutorials/gnome-i18n/developer.html#use-ascii.

The proper solution is most likely not to mark this message for translation
at all, since it doesn't need localization. Then it could also use the
proper copyright sign (©) instead.