i installed the latest version of the game of year edition but,When i go to half life start it up,click on custom games and i hit esf activate it,i go to done then go to internet games,I already filter esf when i go in esf,it goes in esf,then when i get hit it takes me out of esf,And i get a error that says something like half life cuased in error uknown,Half life will close if u continue to experience problems try restarting your computer,Does any body know what to do or atlease have any suggestions?