I found that this only happened to me when i plugged the device into a different usb port [usb 2].
once i had plugged it into every port it stopped happening, however XP always "bing bongs" when you either plug something in it knows about or switch something on it knows about. the "bing bong" does not necessarily mean its loading the driver again unless you see it doing a long series of ballon information displays.
so is it just "bing bong" 'ing or doing a load of "new device found" ballons?
Not sure if this is relevant but when I connected my Epson 680 printer to the PC, windows insisted on installing its own drivers even though I put the latest Epson ones on. If I deleted the windows installation the next time the printer was switched on it would again insist on installing its own drivers even though the newest Epson ones were installed. The solution in my case for this was to have 2 Epson 680 printers installed, ignore the windows installation and use the newest version as the default printer. Don't know if you can do the same with your hub or not.
Have opted for "do not use this device" in Control Panel, Device properties. This stops XP re-finding the PCI-Usb card every time. It's only when the scanner is switched on that XP wants to load the USB Root Hub Dvr again. Will have to live with it.
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