my new go720 stopped working so I tried a reinstall and now it doesn't work at all. Iv'e seen several people here with the same problem but never any one with a solution. Even Tom Tom support is NO support. The computer doesn't recognize Tom. and no it's not the reset button. Iv'e tried all Iv'e read here. Is it toast? Did anyone find a solution? Thank you so much for your time to respond. Kat