It sounds like she may've wiped or corrupted the firmware. Press the reset button inside the flap, next to the USB socket, use a pin point or paperclip wire. This will reset the device, and probably show-up as the white screen again... At least now, you should be able to use the power button.   Now, here comes the fun part.. Download the firmware from Magellan..(link: http://support.magellangps.com/support/index.php?_m=downloads&_a=viewdownload&downloaditemid=400 )(fair warning, It's 2