i'm playing a backed up version of mgs: po on my psp firmware 3.03 oe-b. i loaded my iso from the game, memory stick menu and the game started. fine. but when i put my psp in sleep mode and then turn it back on after a little while, the psp has a black screen with the power light green. the psp eventually shuts down after that.
is this a no umd iso launching problem? is there a way to fix it?