1. This Plug N Play device requires NO software or drivers. USB connection works on both PCs and MACs.

2. Reduce the mouse pointer speed to 25% for your first few days as the PowerBall Mouse runs faster than an optical mouse (click on START then CONTROL PANEL then MOUSE then POINTER OPTIONS).

3. Most computers allow running regular mouse simultaneously   (great for learning period).

4. Try using just the tip of either index or middle finger on trigger for best fit

4. Trigger = Regular Left Button (to drag - point, click & hold, move trackball)

5. Top Right Button = Regular Right Button

6. Top Left Button = Scroll Function for long documents - ON/OFF