The main thing that annoyed me with the sound card DAC when I used it was getting it all set up in Windows. And what still annoys me is that it wasn't working right, I went to bed, and when I woke up the next day it was working. Anyway, I propose this thread to document all the necessary configuration to get it to work. XP and Vista versions would be cool. Unfortunately, I don't feel qualified enough to give any advice here.