In previous versions (before v3.4) some users reported that scrolling with their mouse-wheel was affected by the CVD applet in an unpleasant way. I could only partially reproduce the problem on my machine based on which I implemented a workaround in version 3.4. This is your opportunity to help and share your own experience by leaving a feedback below. Make sure to use the applet for a few moves, then click outside it and try scrolling with the mouse-wheel.