I departed KLVK (Livermore, CA) and climbed up to the East to about 3,500'. The iFly was showing several lines of yellow and (I think) orange dots, almost in a digital array. These did not line up with the hills in the area, that I was well above. After a bit I got a Microsoft like pop-up that said the aplication had an error and had to close. I just powercycled the unit and it worked fine the rest of the flight.