Nano v1 not connecting to usb host

G’Day Gang,

I have just received a Nano v1. Windoze has recognised the unit and I presume it has loaded the device drivers. The Nano pops up as Drive “F” when turned on holding the “M” button but when the nano is turned on holding the “-” it asks to “Connect to USB Host” which it never does.
Any ideas as to what the problem might be? :confused: