Issues with scrollbars, mouse scrollwheels, and touchpad gestures used for scrolling

Scrollbars, scrollwheels, and touchpad gestures are often used for moving through web pages, documents, code, and other large amounts of data. Any question regarding problems with scrollbars(onscreen areas dragged to move page display), and scroll wheels or touchpad gestures(Convenient ways for scrolling without dragging a scrollbar) are accepted, including configuration, or troubleshooting thereof.