Acer Keyboard Volume Control

Anybody know how to adjust the “sensitivity” of the volume control on the keyboard for an Acer Aspire M1201 PC?

At first, I thought the knob wasn’t working at all, but then discovered it IS working … but you have to basically turn it many, MANY revolutions to hear any appreciable increase or decrease in sound. That’s just not a good solution.

I have searched the internet (starting with the Acer web site) for an updated driver or app for the keyboard, but haven’t found any, like what Logitech, Microsoft and Dell all provide for their keyboards.

Any solutions you have found?