Another thought: Are the USB ports on your older XP computer USB 2.0? If not, and they are USB 1.1, that would probably explain the problem with that computer. If you are not sure, let us know the make and model of the computer, and/or the approximate year it was purchased.
And are you using a USB 2.0 compatible cable? If by any chance you are using a cable dating back to the days of USB 1.1, that would probably explain the problems installing to your Windows 7 computer as well.
Hope that helps. Regards,
-- Al
And are you using a USB 2.0 compatible cable? If by any chance you are using a cable dating back to the days of USB 1.1, that would probably explain the problems installing to your Windows 7 computer as well.
Hope that helps. Regards,
-- Al