i believe my question was not really that clear..sorry for that,
anyway, i was the one who configured the proxy server..the antivirus update problem has been solved but i'm still having problems with the yahoo messenger upgrade or new installation..and oftentimes, we just get kicked out in the middle of the conversation, and YM asks us to re-login..we also cannot attach files in YM unlike when we're not behind the proxy..
here's my config:
acl mynet src 192.168.2.0/24
acl YIM_ports port 5000-5100
acl YIM_domains dstdomain .yahoo.com .yahoo.co.jp .yahoo.co.id .yahoo.com.sg
acl YIM_hosts dstdomain scs.msg.yahoo.com cs.yahoo.co.jp
acl YIM_methods method CONNECT
http_access allow YIM_methods YIM_ports YIM_hosts
http_access allow YIM_methods YIM_ports YIM_domains
acl games url_regex "/etc/squid/game-sites.squid"
acl bad_siteswords url_regex "/etc/squid/bad-words.squid"
http_access deny bad_siteswords
http_access deny games
deny_info URL_ERROR games
deny_info URL_ERROR bad_siteswords
http_access allow mynet
any help is greatly appreciated!
thanks in adv...