Mouses that work for me: Kensington Mouse-in-a-Box Optical 72123 (NOT the newer 72123CAA version) Kensington Expert Mouse K64325 (actually a trackball, and rather expensive) HP M-UY 101, 361781-007 (very hard to find)
I tried several USB keyboards, with and without a powered USB hub, for 9Pi before finding one that worked: Genius LuxeMate i200 Got it from Amazon in December for about US$20. Keyboards that didn't work: PFU HHKB2Lite old iMac usb keyboard c. 2001 Apple 'Pro' keyboard, c. 2004 generic compact layout keyboard from Fry's Electronics, c. 2008 IBM Type M with two different generic PS/2 to USB adapter (also from Fry's) Compaq 5187-5023 Rev. 1.2 with same two generic PS/2 to USB adapters.
