I have a SB Live! model CT4830 and a FPS1600 speaker set. I have trouble getting sound from the second channel (rear speakers) in some applications/games under Windows XP Pro, such as Freedom Force or Winamp. I have tried the updated Microsoft default drivers and the latest Creative WinXP drivers, but neither solved the problem. The Creative CD provided with the card does the trick, but makes the system unstable (WinXP incompatibility, I guess). However, I have no problems at all under Windows 2000 Pro, using the Creative CD. Does anyone have a similar problem? Is there a way to workaround this?