Hi Guys,
Windows is a beauty for rearranging hardware resources.
Normally it will reallocate the ports if you insert the usb device into a different port than last time.
The only way to stop this happening is to disable "Plug-n-Play in CMOS.
But, this can lead to making hardware more stubborn to install.
To check which port is being used, insert device into usb port, then open hardware mgr to verify what it is set to...
Hope this helps