Turn the Kensington base receptacle slider button to the OFF position. The metal part of the connector tends to overheat. Turn off the USB port that has the USB adapter. What to do overnight so the trackball does not lose connectivity: At some point, the mouse cursor on the screen should start moving.You should see a blinking red light at the bottom of the trackball. Click one of the 4 buttons on the trackball.Turn the Kensington base receptacle slider button to the ON position.Turn the USB hub port back on with the ON/OFF button.Plug the Kensington USB adapter back into the USB hub after it has cooled off.Put the billiard-sized trackball back into the Kensington base receptacle.Take the billiard-sized trackball out of the Kensington base receptacle in the device and blow air on the red laser sensor.Usually, it overheats, it'll be hot to the touch when you unplug it.
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