Setting speaker icon tone

[sl]

When you adjust the slide bar of the speaker icon on the
task bar, I use to get a "ding" tone coming from the
speakers, with the volume correspond to whether I am
sliding it up or down.

I don't know what caused this, but now, when I adjust the
slide bar, I get the "beep" tone coming from the computer
itself, with no volume difference no matter which way I go.

Do anyone know how to change this?

Thanks.

 

[Steve N.]

Strange - the same thing is happening on one of my systems, which
happens to be a t SP4 - another one which does work correctly is at SP3.
I wonder of that's the cause?

Steve