Picked this game today on a Steam's daily deal and ran into a problem that some sounds (most of the NPC's dialogues, sometimes gunshots or step sounds) do not play until you enter and exit the "escape" menu. Fiddling with the config file and audio settings did not help, however, what helped was running the game in the Windows 98 compatibility mode. What do you know. My sound card is a rather old integreated Realtek AC97 which hasn't had any driver updates for the last seven years.
