Just to rule out a possible non-working port. Also, are you sure the cable is seated firmly into the device? I recently made that mistake myself with a new usb scanner- it wasn't recognized until I gave the cord a firm shove into the scanner. Hope it's as simple as that for you.
Not sure if This is an XP problem or my HP Pavilion 7935 is hosed. I'm on my 3rd brand new HP printer this one a PSC 2175 all in one. All three have done the same thing. Following the instructions to the letter it recognizes a new device but then the computer shuts down and reboots over and over and over. I've tried uninstalling the software so many times and believe I've eliminated any conflicts from my old printer and scanner. I don't see the device in the device manager under USB ports. The only other device on a usb cable is my Canon camera and it works fine. HP has offered little if no help at all. Thanks

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