Here are pics of my mod to the 8310. All you have to do is follow the instructions for cleaning the trackball,and use a very small piece of clear tape over the trackballs LED(looks like a square on the right of the trackball section of the circuit board). I even took it a step further and looked for the LEDS for the Keyboard and colored those blue. This can be changed in less than 10 minutes,so next week the ball may be green. thanks to the original poster for the info.