Scrolling in Mixer modifies values

Thanks for you’re reply, I have tried changing the setting within that window of preferences with no luck.

An example of what I mean, If my mouse pointer is in the pan box (I have not clicked on the pan parameter) if I try and scroll the mixer the pan parameter changes. This means every time I want to scroll I have to position the mouse pointer somewhere where there is no parameters.

Ideally I would like to disable the mouse wheel on all knobs/sliders and faders like you can with volume and fade, or at least only make it adjust a parameter after clicking the parameter in question.