I still have an early Logitech mouse that was used with the FutureNet schematic capture program for the original IBM PC (5150). It had a special graphics card that would do ?high resolution? graphics on the IBM PC monochrome monitor This Logitech mouse was released in 1983. Here is an early advertisement. http://books.google.com/books?id=ti8EAAAAMBAJ&pg=PA21 Here are some photos of my mouse. http://commons.wikimedia.org/wiki/File:Logitech_Logimouse_Front_1983.jpg Michael Holley