It look like a graphic problem. First, download map again. Second, try without skin, clean cache. Or, third, maybe something is wrong with your device.
Also, it is possible that your resolution is not optimal.
Yep. Sorry. I miss that is 1440x2560. Too big. You can say this is mix of problems: graphic and resolution. Not hardware, software problem.
in sys.txt add
TNX Arie, it did the magic