i just installed hl2, but everytime that i try to start it, i get this message saying: "Setup file 'gameinfo.txt' doesn't exist in subdirectory 'hl2'. Check your -game parameter or VCONFIG setting." there is no gameinfo.txt in my hl2 folder, and i dont have anything else that i could copy it to... PLEASE HELP! i just found the game after about months of searching, and i REALLY WANT 2 PLAY!!!!