I have just purchased a Via 280 and want to download some new maps for our upcoming holiday. I have downloaded mydrive connect to my laptop, logged in (I already have an older TOMTOM) and then plugged in and turned on the Via 280 to link it to my current account. The device is being charged via the USB cord, but the computer is not recognizing the device. I plugged my old device in and it recognized it straight away. What should I do. I am inclined to return it and get another branch, as we travel very soon.