[squid-users] squid auth problem

hi,
i want to use user authentication with squid 2.5 stable 10. ive added
these lines in my config:
  
auth_param digest
program /usr/local/squid/libexec/squidauth.pl /usr/local/squid/libexec/users
 
auth_param digest children 5
auth_param digest realm Squi#d proxy-caching web server
 
the authentication window in my ie opens but if i type in my user data the
authentication window opens again. after typing in my username and
password three times i get access denied. these are the acl settings:
 
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl users proxy_auth "/usr/local/squid/libexec/users"
acl users proxy_auth REQUIRED
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl CONNECT method CONNECT
no_cache deny QUERY
http_access allow manager localhost
http_access allow all users
http_access deny manager
http_access deny all
 
thanks

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