ok, i have lego star wars 2 for psp, and i have 179/180 minikits. i know where it is, cloud city trap (in the cage). but every time i get it, my psp freezes up. i tried the umd and the iso. i tried with devhook 2.71. my friend, who also has the game and an actual 2.71 tried it too, but it froze for him, too. what should i do?