I have also tried it in multiple USB ports and same problem. I have a powered USB hub and tried it in all four of those, so 7 ports and nothing. all my other usb devices work in these ports.
My computer is not recognizing my usb external hard drive. I get the error message that the usb device is not recognized. "One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it." I don't know what to do, I've tried unplugging all USB devices, then plugging only the hard drive in, I've tried leaving everything unplugged for the night, and I even tried a system restore.
I'm running Vista ultimate 32bit
on a hp dv6500t
intel core 2 due 2.0ghz
2gb ram
the hard drive is a Western Digital My Book Premium ES edtion

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