Helo My Hl2 Deathmatch Dont Work!!!

[craig12321]

Every time i click on my steam account and onto my games and go onto hl2 deathmatch it loads up and i click find a server but the it crashes how can i fix this!!!!!!!!! please tell me if you know

 

[Xendance]

ZoneAlarm could possibly be blocking it.

 

[craig12321]

do you think so because i told zone alarm to accept connections to my computer