tried not one, three diff usb cables. I am convinced, it is not usb cable or port. In Zumo modification page, it says, while running diagnostic mode, plug in the usb cable and then it will ask to install some more usb drivers, accept it and then it works like a gps reciever. I am just wondering, if sumthing like that happened?

For sure, the problem is not cable or usb port.

lets see.

Thanks again Catymag.