From work I setup squid on my home box pretty much with the default file except i am running it on port 21(one of two ports they have open). I can go to all sites download and do anything I want. Have not had any problems for over a month. When I try to play yahoo games or fulltiltpoker it will not connect to their servers. I am forwarding all protocols in IE and Firefox to use port 21. Tried googling and searching and cannot find anything. Not sure what I am missing or what i need to change in the squid.conf file. Any help would be appreciated. I also have no problems running mIrc through the proxy server.
*edit*Forgot to add I am testing before i implement this into buisness setting and just curious why these apps do not work and what other are not compatible.