I just want to share my findings. Remember I reported that this version crasehd on me when it's zooming out. If you go into sys.txt and put a max_memory = 512MB (type it in bytes) or higher, the problem goes away and the program runs smoother. This was plaguing the Igo Primo and it still plagues Nextgen. NNG just is not fixing it. Anyways, sharing my view. if you have crash problem (i have a Samsung s5 and note 5, powerful phone by all means), you should try this.