Thought I better get round to using my HL2 voucher sop I signed up for steam in the recommended manner only to find that it didn't matter anyway as I already have HL and Opposing Forces and Steam automatically logged me on with their keycode and didn't give me the option of using the voucher one. So I go through the rigmarole of downloading all the HL games and steam converting them to a steam type format. Now I find not one of them will [play on my machine. They load up to a certain point : some of them make iot to the server search screen and hang when I try to connect. Some just hang on the loading screen. Some I can kill with the task manager , some I can't and have to reboot. Firewall on or off didn't make any difference. Drove me nuts and wasted a lot of time. I finished up playing FarCry online instead which worked perfectly. any ideas?