ok.. I've just disassembled my ds to replace the case (it had the well known crack), I turned it on and thought it was fine for a while... til I noticed that some shades of gray and white turns to YELLOW this happens only on the bottom screen though, gets annoying when you see someone else playing the same game but it just looks ugly on yours (playin' ff12) I've even tried replacing the screen. Still the same prob, and my screen works fine on other ds. =< anyone had similar cases? and... fix maybe?