SC:Chaos Theory - Sound Loop Problem

[fearwhatnow]

I have via vinyl deck audio AC'97.and updated.the game runs like hell!1024*768,2X anisotropic and antialising,high textures,high detail,triple buffering.only shadows are at the medium setting.even Prey runs at high detail without frame loss.that's because it does not support directx 9.0c and forces games to run in directx 8.0.of course with the loss of all special lighting effecs and all..anyway.i replied a little late because of this:when the problem occured again i alt-tabbed the game and realized that the sound problem continued on the desktop.e.g. mp3's looping fast forward.tried from control panel to resolve it without any success.this problem is only on SC:Chaos Theory.other games have stable sound.i checked that the game supports ac'97 on-board sound.