Sometimes (with some certain devices) Windows installs a new driver every time you connect to a different USB port and eventually gets itself over-run with drivers for a device. I've seen 6 of the same driver being installed on a system because it was plugged into different ports over time.
Maybe the Vista driver for that particular device has that problem (?)
I don't recall if this problem existed with XP..

Anyway, glad you got it sorted out, and maybe paying attention to which USB port you actually plug into will help prevent it in the future. It was a manufacturer/device specific issue.


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