I'm already disappointed but still hopeful

Have the Tom-Tom Camper directly from Tom-Tom, as we went on vacation with WOMO 3 weeks ago. Even still in the children's feet, since the very first launch of this device appeared problems that we have, but adjusted to the support. Along the way there has ever gestreickt and is down for a while or just the initial image has been released - no reaction, neither the touch nor read it turn off or on again. Did it then detached from the cable and pressed the off button long, eventually it responded again. Annoying however, it was that the fault was just a few kilometers from the Gotthard tunnel ..... :-( now hope for improvement through updates!