I'd try (in the following order)
1. Make sure all Windows updates are applied. See [post=744411]USB Device Problems? Check for Windows Updates[/post]
2. Windows only deletes old USB connection data when you uninstall the device (not when you disconnect). This can sometimes cause device conflicts, etc. Remove all old USB connection data See [post=727106]How to use the DriveCleanupTool[/post]
3. Your computer's USB port may not be supplying sufficient power to the connected device
> If your USB device has it's own AC adapter, connect it as well
> Disconnect all other USB devices except the one
> Try a different and shortest USB cable
> Get a USB hub that can supply
1000mA! According to the USB spec, USB ports don't need to supply more then 500mA but i sometimes see devices fail because they want
more power then the 500mA spec. Try using a USB external hub that can exceed the spec (supplies 1000mA port)
===> I happen to use this
Targus
===> But you can google for
usb hub 1000mA or check your computer store for one. Then try connecting all your hi powered devices into the 1000mA USB port
