Mike, you are rite. I replace my "default" file with this one. now everything works.

[code]
server {
server_name localhost;
listen 80; # listen on port 80

root /www; # our root document path
index index.php index.html index.htm;

location ~* \.php$ { # for requests ending with .php

# specify the listening address and port that you configured previously
fastcgi_pass 127.0.0.1:9000;

# the document path to be passed to PHP-FPM
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

# the script filename to be passed to PHP-FPM
fastcgi_param PATH_INFO $fastcgi_script_name;

# include other FastCGI related configuration settings
include fastcgi_params;
}
}
[/code]