"JR North" wrote in message
.. .
I originally had USB 1.0 on my ME 'puter. MB ports. The Visioneer USB
scanner I bought later would not work on this machine, although other USB
items (IErinter)I was using at the time did. No error dialog, just no
comm. Drove me nuts. I got a USB 2.0 card, installed it, re-installed the
scanner, and the scanner worked perfectly with this setup. My .02

You can also try the compatibility wizard with WinXP.