I'm going to return this and try one more, but given Adesso's hit-or-miss history, I won't be surprised if the replacement also dies. I'll repost if it turns out to be a winner.
Having the touchpad right next to the keyboard is wonderfully efficient; The feel of the keyboard was pleasing: keys were not too hard nor too easy to press; I plugged it in, turned on the computer (Windows XP Pro), the device was recognized, and away I went..
...for one hour; I went to try to use the touchpad, and the cursor disappeared, and it appeared that my computer had frozen; When I rebooted, the hardware manager gave me the error message that a device was not recognized and had malfunctioned