At 10:03 PM 4/10/99 , you wrote: >I use a Logitech Trackman Marble pointing device. I've also used and >experienced the same problems w/ a Logitech Trackman Vista pointing >device. > For the Trackman Marble (bell ball with spots) all you shjould use is the old saopy water on the ball, the interior (support 'dots' , "window', and ring) should be cleaned with that ever popular damp cloth. Since the Marble uses an infrared beam to read the motion of the dots not much more is needed. For the other trackmans that operate with little wheels and rubber "tires" careful cleaning with a damp Qtip is usually the best. ANd don't forget that the rubber tires do move on the wire and sometimes after cleaning you need to "balance" the tires by moving them back to where the action of the trackball is best for you. Use teh end of a pencil to move the tires back and forth and locate the spot that works best for you. Also on some loosening the ring that holds the ball in a bit will do wonders for the feel. Me I don't really like using alcohol of rubber products becasue it can dry them out. If you must -- use something that is recommended for use in tape decks to clean rubber rollers. ======================================= "2 + 2 = 5 for very large values of 2" a Marshall Space Center engineer. _______________________________________ PCBUILD mailing list is brought to you by: The NOSPIN Group http://nospin.com