Since Navionics appears to be listening here I've put up one of my screen shots that I had while trying to use their program. I also checked another program I have that gives me gps to make sure the gps was working and indeed it was. Nothing I tried with the program would get me back to a navigation screen. I did not have a network connection at this time. About a week later I tried the program again and I have my usual screen back. I had since connected to the Internet but nut updated the program and it was then I believe I have my screen back with the little boat and land / water info. DANGEROUS is the word I would use for this product.

Ciao