Lighttpd

i'm seeing unexpected behaviour with using mod_scgi and binding to the ipv6 loopback address.
my scgi listener on ::1 port 6500 does not receive a connection when trying to access the document root.
without using ipv6 for the server and listening\binding instead on 127.0.0.1 it works. see following error messages, which appear when trying to access the first time.

lines from the error.log

2011-12-09 21:54:36: (mod_scgi.c.1349) converting IP-adress failed for 0:0:0:0:0:0:0:1 
Be sure to specify an IP address here 
2011-12-09 21:54:36: (mod_scgi.c.2389) fcgi-server disabled: 0:0:0:0:0:0:0:1 6500
2011-12-09 22:26:54: (mod_scgi.c.2065) proc: ::1 6500  5 0 0 0 
2011-12-09 22:26:54: (mod_scgi.c.2769) all handlers for  / on / are down.

lines from lighttpd.conf

server.use-ipv6 = "enable" 
server.bind = "0:0:0:0:0:0:0:1" 
scgi.server = ("/" =>
  (("host" => server.bind,
    "port" => 6500,
    "check-local" => "disable")))

system info
lighttpd/1.4.29 on linux 3.1.4

i also tried using "::1" and "0::1" as address with the same result.