I've discovered another idiotic effect of a form of "late binding" (the dumbest development idea of all time). In short, if a user wants to mute Windows Sounds to listen to some music (for example, Windows Media Player), then every other program on the system that has sound feedback enabled will need to be muted individually, and can only be muted after they actually send a sound. In Windows Vista the sound mixer populates all running programs when it is run, but in Windows 7 the Sound Mixer starts up almost empty, showing Windows Sounds but little else. Then, each time a program (that was already running when Sound Mixer was started) plays a sound, the sound interrupts the music, requiring the user to visit Sound Mixer repeatedly to mute each program in turn. It would be great to learn of a third party Sound Miser or Registry or other tweak to restore the Vista behavior or even improve upon it [as I recall, not every sound source was separated from the "wave sound" item]. Even though the Vista Sound Mixer wasn't perfect, it was the best Microsoft mixer to date. ------------------------------ Windows 7 - it wasn't my idea!