In article <051820081955.19281.483089A70002A29D00004B5122230703629B0A02D29B9B0EBF9B0809079D99D309 at att.net>, g-wright at att.net writes: The keyboard that goes with mine is Tektronix part #119-2374-00. It has an octagonal direction pad that can be used like a mouse to position a cursor on the screen. It also has a 9-pin (DE-9 for you nitpickers) connector on the back of the keyboard labelled mouse. I'm not sure of the electrical interface for the mouse. I have another keyboard that has an identical connector, key labels and positioning, but without the mouse connector. It has part #119-1592-01. I bought these on ebay as spare keyboards, but now that I see that they have different part numbers, I'm not sure they're compatible, but it looks physically identical. There are some keyboards on ebay right now, just search for "tektronix keyboard" and you'll find some with the 9-pin DIN style connector. ebay item # 190174053775 is a 119-1592-01 style keyboard. The price is too high for my tastes. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>