A slight vibration caused by the disk drive causes the touchpad to move the mouse. See if you can disable the touchpad (From right mouse button menu on the My Computer icon, Manage, device manager) or from the Mouse icon in the control panel. slight vibration caused by the disk drive causes the touchpad to move the mouse. See if you can disable the touchpad (From right mouse button menu on the My Computer icon, Manage, device manager) or from the Mouse icon in the control panel.