My laptop is used for office work...as such, there are various "Network Drives" configured in "My Computer".
On occasions, I have had probelms in the past where I have had to disconnect (in software) these Network Drives in order to recognise devices on the USB ports (due to Drive Letter conflicts).
Not sure if you use yours away from home or not, but if so, maybe you will also have to disconnect the Network Drives....and reconfigure once you have finished with the external USB drive.




