I just installed 3.51 m33 and it loaded fine. crated iso folder, put iso and a cso in folder,backed out of usb mode selected game, then mem stick, selected the cso. psp asked if i wanted to autosave, selected yes. it acted like it wanted to load, but locked up and I had to power down. what do ineed to do to fix this. i want to play iso's and cso's.