While cruising my download site of choice I found this. I don't know whether it's of any use to you, but I figured I'd post it anyway as I have had this problem. It claims to fix games that do nothing then switch your PSP off. Hope it's of some use to someone. Probably old news, but it's new to me so maybe it's new to others? 'Fix for games that start then switch off PSP Hey all! A number of people have been reporting that thier games start then switch off psp, so here is a fix for you... 1. Go to recovery menu (switch on psp while holding r trigger)then go to configuration. 2. Change 'game folder homebrew' settings to: 1.50 kernel. 3. Change 'umd mode' to: sony np9660 -no umd- 4. Change 'fake region' to: america then go back and go to CPU speed. change the 'umd/iso ' speed to default. I just tested this method on 5.50gen-b full and smackdown vs raw 2010 and it works perfectly. Use this on other games that dont start. hope this helps. '