Tom Tom Rider pro 450 not connecting to PC
I have a tomtom Rider pro 450 which I have been updating and using for a month or more, but now will no longer connect to my PC.
I have check the USB cable (yes tomtom supplied) is connect correctly, tried different USB ports, tried to update the drivers, which are already the latest, reset the Tomtom, restarted tomtom mydrive and tomtotm home but still the device is not shown as connected - so I am unable to use mydrive or perform the updates Tomtom have sent me.
Can anyone help - suggestions much appreciated. thanks