Dell MS900 Premier Wireless Mouse - Manual (Page 19)

Changing the scroll-speed │ 19
Changing the scroll-speed
Your Dell wireless mouse’s vertical-scroll wheel can be shifted between two scrolling
modes, such as notched and fast. To toggle between these modes, press the
scroll-speed toggle button.
• Notched speed mode is suitable for scrolling precise items.
• Fast speed mode is best for scrolling through long web pages and files.