Just a stab in the dark...
Try setting the bios to assign an IRQ to USB (look under the PCI/PNP options in the bios).
If this doesn't apply or doesn't work, my apologies.  It's just something I remember hearing.

Tony Mayer



>We have a setup where we use a Belkin Switch to share a keyboard,
>mouse and ZIP Drive between a Macintosh and a PC . The switch
>connects to a Bekkin 4 port powered 2.0 USB hub, thhe mouse,
>keyboard, and ZIP drive connect to the hub. This setup works with
>Dells, Gateways, and some "graybox" computers we have. But, we
>recently purchased some Shuttle brand PC's (www.shuttle.com) and in
>every case, the hub is detected, and when the computer loads the
>software (Win XP), it returns an error that "an error was encountered
>and your hardware may not function properly". On a side note while
>the Shuttle is in the BIOS POST stage, the mouse is lit up, when
>Windows XP starts loading, the mouse goes dark. I suspect some
>Shuttle specific driver, but I can't tell which one. I went so far as
>to wipe a drive and load a "vanilla" Windows XP install, and still
>the same thing.  When I go into the Device Manager, there is the
>usual yellow "!" through the device and properties says "this device
>is not working. Could not start (Code 10)" I can attach other USB 2.0
>devices to the Shuttles and they work just fine, the drivers are just
>the standard Windows 2.0 drivers, but the hubs just don't work. I
>have tried several hubs and Shuttles (we have 73 of 'em) and the same
>thing happens to every one of them. Anyone have any ideas?? I've been
>working on this for over a week now, including Shuttle and Belkin
>Tech supports.
>
>
>THANKS!!!
>--
>James Edwards

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