neo4.1 chip help with question

[Quadude32]

Can anyone explain what is happening?The other night i played some ps2 backups worked great didnt move it around or nothing..today i went to play it and nothing same game and everything...just a blackscreen...whats wierd is that i can play org.ps2 games and psx backups no prob. just my ps2 backups wont boot now is it my neo4.1 chip?all it says is playstation on the bottom of a blackscreen it has never done this before.....its got me baffeled? any help would be great thanks quad