Sqeeky sound while using scroll wheel

[viper11885]

Hey,

I notice this especially when using headphones.. When I use the scroll wheel in any program, I can hear a "chirping" sound through the headphones. I thought that it might be the mouse, but switched it from ps/2 to usb and it hasn't changed.

Does naybody know what I can do to stop this??

btw, I have an audigy soundcard with latest drivers, running xp.

Thanks.