funtoo-current-corei7-2012-05-22.tar.xz has an /etc/hosts file that lists this line first:

::1 localhost

...and this line second:

127.0.0.1 localhost localhost.localdomain

This will cause "localhost" name lookups performed by local services to find ::1 (IPv6) as the address of localhost, and if IPv6 isn't enabled, this will result in connection to localhost failing. It is probably best to default to IPv4 at this time, since IPv4 is generally always enabled.