Product: TrackBall Optical
Company: Microsoft.com
Website: http://www.microsoft.com/hardware
Estimated Street Price: $44.95
Review By: Julien JAY

Setup and Usability

Here comes the catch, right? A so complex trackball must have complex software to install...driver and software compatibility issues, etc. You’re wrong! Indeed the TrackBall was a breeze to setup and install. All I did was unplug my old IntelliMouse Explorer and plug the new one in the PS/2 port (there’s really no interest to use the USB port for a mouse since it’ll clutter your USB hubs and worst you may encounter some dead times when the computer is hardly working). The package comes with the latest release 3.2 of the IntelliEye software which totals about 30 megabytes on your hard drive. This release works under Windows 95/98/98SE/2000 and Millennium. It includes the standard IntelliPoint features:

• The Button Assignment feature, located on the Buttons tab, enables users to select a feature for each button. For example, you can reassign a button to enable you to undo a step, making it easy to correct mistakes as they happen.
• The ClickLock feature, located on the Activities tab, "locks down" a mouse or trackball button after a single-click. Just click and hold down any mouse or trackball button for a moment, and your click is locked. With ClickLock you can drag objects, select blocks of text, open menus, and so on. Click again to release ClickLock.
• The Double-Click Speed feature, located on the Activities tab, changes the speed at which your software programs respond to a double-click. Use this feature to adjust your double-click speed if your double-clicks aren't always recognized by your program.
• The Orientation feature, located on the Activities tab, improves your pointer movement for the way in which you hold your device. Using Orientation, you can hold your mouse or trackball in the position that is most comfortable for you and then define which way is "up."
• The Pointer Speed feature, located on the Pointer Options tab, adjusts the speed of the pointer in relation to the speed of your mouse or trackball. Use this feature to change your pointer speed if the pointer moves too slowly or too quickly when you move your mouse or trackball.
• The SnapTo feature, located on the Pointer Options tab, automatically moves the pointer to the default button when you open a dialog box.
• The Trails feature, located on the Pointer Options tab, displays a comet-like trail when you move the pointer. Use this feature to make the pointer easier to see. (This feature isn't available in Windows NT.)
• The Vanish feature, located on the Pointer Options tab, hides the pointer when you type. The pointer reappears when you move the mouse or trackball.
• The Scrolling feature, located on the Wheel tab, enables you to change the number of lines that you scroll with each notch of the wheel. You can even change the setting to scroll one screen at a time. 
• The Wheel Troubleshooter feature, located on the Wheel tab, helps you to fix problems that you may encounter when you use the wheel in different programs.

Microsoft IntelliPoint 3.2 drivers (click to enlarge)

Design

The TrackBall Optical is also different from other trackballs because of its' new engineered ergonomic design. The large trackball design allows users to rest their hand in a natural and comfortable position on the mouse. When the hand is put on the device shell, the thumb naturally reaches the new advanced designed marble ball that will be the key to move your screen pointer while the other fingers get on the usual buttons. Using the two programmable forward and back buttons (that are much smaller than the standard ones) is very easy as they’re located at both extremities of the trackball for quick access with your index or ring finger while your middle finger will naturally command the wheel of the device.  The unit perfectly supports more of the hand while the sloped shape keeps hand and forearm aligned naturally. Microsoft TrackBall Optical ball is big enough to be handled accurately and its surface is smooth so it’s pleasant to touch. Surface of the ball is ‘tagged’ with a myriad of points that are needed by the IntelliEye sensor to analyse its move. The global design of the trackball is beautiful and the small red lighted ring that surrounded the key piece of the device (I mean the ball) gives it a cool look! Note that if ever some dirt enters into the trackball, as the ball is removable you’ll be able to clean (rarely needed) the IntelliEye sensor.

Usability

New TrackBall users will have to take a few days to adapt themselves to this new way of moving your screen cursor by just moving their thumb. However the learning phase is a breeze and less than a week after the purchase you’ll use it as if you were born with it! If you’ve already used a TrackBall before then you’ll be amazed by the comfort and ease of use this new one will bring you.