Today I got my new computer and I set everything up, then I go to play HL2 and it crashes at the loading screen and then I said no big deal I'll goto the steam support page so I look up the problem and it says I have to manully allow HL2 to play through the firewall and I don't know where to go, Ant told me to get zonealarm and that it would overide the XP one
So can you help me?