I have a Kingston traveller 8gb USB stick that I have used on 3 different Vu Solo2's and a Vu Duo with no problem. However my father in laws will not have it. After flicking the ticker switch to on it briefly says on the display reading USB then it says starting and boots up. I have tried with a San Disk USB stick and it just goes steaming to starting.

Is this a likely to be a probkem with the USB ports? Both ports are giving the same above symptoms.