I have has my Audigy 2 and ATH-500 headphones for a few months. I have just used the drivers off the cd that the sound card came with. The sound was very good. Then I decided yesterday to check if there have been any updates on the soundcard drivers. So there was an update for Mid may 2005. I install them and my sound change tottaly. I dont know if its good or bad because I am so used to the old sound. Music sounds pretty musch basicly the same as I feel it may not be as clear, but I really cant tell. Playing games like counter strike the positioning is now crazy. before It positioned, but now it is really in detail to wear it is on the phone.