In the free wheel scrolling mode, if the wheel is not stopped and moved from one window to another, then page scrolling will continue in a new window. To me, after the mouse with scrolling the wheel with clicks, it is still unusual. Needs to be mastered. Also, in the free wheel scrolling mode, with a light touch while moving the mouse, sometimes the page can scroll a little by 1-3 lines. But other than that, it's a good mouse. I am satisfied. Worried that the little finger while working with the mouse will fiddle around on the mat. But the fears were in vain. Thanks to the rubberized surface on the side, this does not happen.