I had the Marine Navigator Light app all last year on my Razor Maax and it worked great till I tipped a can of spray paint off a shelf and busted it. I got this X to use for now and for whatever reason it won't let me download charts. They begin to download then immediately stop and I get the unsuccessful download warning. For whatever reason it says the folder it downloads doesn't exist. May be it's my setup as I am used to downloads going automatically where they are supposed to go and these are free US Gov Raster charts you have to pull in. I don't recall setting the thing up with my Razor was so hard. Does anyone use this appp and / or have an idea why it's not working?