I have decided to use v1.3.1. For some reason, I can't run/play Tomak Save the Earth Again on the GP32. I've installed the game twice on two different SMC's, but it still won't work. The system just reboot. I am also getting mixed results with the two SMC. Movie Park and SMS32 work on both cards, but only one SMC is able to load GPEngine (only a few games would play - Galaga'90, Klax, and DeadMoon). This is a slight improvement over the first GP32 unit that I returned. Would a card reader solve these problems? Should I just give up and get my money back?!