I have a SBLive! and an Nvidia chipset ASUS motherboard.
If I die, the screen goes grey and you hear the 'death whisper' sound that runs until you respawn. The problem is, if I quit a game, SP or MP, during this period, the death whisper is persistent and never goes away. At all. Starting a new game, turning the sound off and on, replaying and dying to reset the whisper, nothing except quitting to windows will stop the death whisper.