bloody funny you should say that, as of yesterday i noticed the same thing with, normally black or pink but yesterday in the bottom right corner a green tint, would love to know why that is, hopefully there isnt a problem with it.
I thought maybe its a new winter color scheme, like the pink for day time and black at night time, green for winter :} but realised not all you guys (or girls) will be hitting winter, and then realised that it only appears when i first start up the system it isnt there after i have played a game.
wel im hitign summer soon lol, i duno its really strange, mines still tehre after i come out of a game, but when you would usualy get the black background, i get that , adn the green is gone,
"The XMB's default background color changes depending on the current month of the year, and it changes brightness depending on the time of day."
Source - http://en.wikipedia.org/wiki/PlayStation_3
I can't find anything about the green tint though.
