mod_fcgid: couldn't bind unix domain socket

[Gambito]

hi!

i'm having the following problem installing fast-cgi to use ruby on
rails

[Wed Sep 10 16:48:35 2008] [error] (13)Permission denied: mod_fcgid:
couldn't bind unix domain socket /tmp/fcgid_sock/6389.14

is a very strange error, because i've got all permissions on /tmp/
fcgid_sock, so it shouldn't be a permission problem. On my fcgid.conf
file i have the following:

LoadModule fcgid_module /usr/lib/httpd/modules/mod_fcgid.so

<IfModule mod_fcgid.c>
AddHandler fcgid-script .fcgi
SocketPath /tmp/fcgid_sock
IdleTimeout 3600
ProcessLifeTime 7200
MaxProcessCount 8
DefaultMaxClassProcessCount 2
IPCConnectTimeout 8
IPCCommTimeout 60
DefaultInitEnv RAILS_ENV production
</IfModule>

what could be the problem?? i'm getting a 503 error on all pages