I'd like an IMAGE SIZE LOCK option on the image size of the Source or Program monitors.

Any time I move my Magic Mouse over the image, if my finger moves even a micron, the image zooms wildly in or out.  It happens all day long, and I know I'm not the only one!  

So basically, unless you click on the drop-down menu to adjust the size, please let us turn off the scroll-zoom capability. Lock that size until actual adjustments are made.  And if scroll-zoom is still popular, then have it be an Option- modifier move, that only activates but that means.  

Thank you for your attention to this matter!