The Microsoft ARC mouse, like most computer mouse models, has a built-in scroll wheel on the front of the device. This allows you to move a page on the computer screen up or down without clicking on the scroll bar on the side of the page window. To fix an ARC mouse scroll wheel that is not working properly typically requires removing what is jamming the wheel or changing incorrect computer settings.
Examine the opening around the scroll wheel. Check for any debris, dirt or other material stuck around the crevices of the wheel.
Scrape out any debris by using a safety pin. The area around the wheel must be free of obstructions in order for the wheel to move smoothly.
Click the "Start" button at the lower left of the computer screen, then click "Control Panel." Select the "Mouse and Keyboard" option after the Control Panel window appears.
Check the box to enable the scroll wheel. You also can select a keystroke function for the ARC mouse scroll wheel to use when the wheel is pushed down (this functions like a third mouse button).
Click "Apply" to accept the changes, then click "OK" and exit the Control Panel window.