My problem is sound oriented, but mostly the game works fine. Even the sound pretty much works fine, except for a random "muffling" if you will, of the game's sound. For example, suddenly my footsteps, gunshots/attacks, all personal SFX become noticeably quieter, then maybe get louder again if I move away. This ONLY occurs with enable hardware 3D sound support. However, if I turn it off, I lose all 3D sound completely...which sucks :\ So any help would be greatly appreciated. Also, I have an onboard Realtek HD Audio soundcard, and the drivers are updated.