i wonder if it has anything to do with all 3 times my hd was formatted so there was no game data or trophy data , not even a svae game. try backing all the data up and deleting it, then install latest update using multiman to get it for you, then try running the game.
I promise you mine works cos my misses played it for 30 mins only other thing i can think of is maybe uncharted 3 was a game i've patched in the actual game folder instead of using a pkg fix. since i used to play it on 3.55 too, usually i dont change game folders, but maybe this is one that i have.
i'm gonna have to go check it again now, you've got me paranoid. i reinstalled rebug 4.25 rex again last night after swapping over to rogero to see how it was developing, hope i aint messed it all up too.
okies i have set it going, didn't install any update this time, and ps3 is blank and got no game data, as i format hd everytime i install new cfw. (old habit). the ring is spinning and my hd light is flashing.
its asked me for language i selected english and now its working it works fine. maybe try deleting all game data and trophys and try again. cos it definitely works.