Same here, with fresh install of Hardy Alpha 4 upgraded to current and gdm 2.20.3-0ubuntu3. gdm 2.20.3-0ubuntu3’s changelog says ‘use /etc/default/locale to set LANG and LANGUAGE’ and when I changed LANGUAGE to "en_GB.UTF-8:en" in /etc/default/locale the problem went away on next reboot (logging out and back in did not suffice).
Same here, with fresh install of Hardy Alpha 4 upgraded to current and gdm 2.20.3-0ubuntu3. gdm 2.20.3-0ubuntu3’s changelog says ‘use /etc/default/locale to set LANG and LANGUAGE’ and when I changed LANGUAGE to "en_GB.UTF-8:en" in /etc/default/locale the problem went away on next reboot (logging out and back in did not suffice).