I'm having a rather strange issue. On my DSi XL, running an EZFlash Vi, I have a "ghosting" effect on the top screen. My wife and mother play Picross3D on it a lot. And I mean a LOT. They leave it in sleep mode pretty often too. (I'm usually watching TV with my kids or playing something on the PS3 when this happens.) When I go to use my DSi, and I load a different game (doesn't matter what), the top screen from Picross3D is very faintly seen still on the screen. It seems to overshadow the top screen in whatever it is I play. Sometimes its bothersome, and other times it is only barely seen, but it is definitely still there. Strange thing is that if Picross3D isn't loaded for a while (like a few days or so), it clears up. It just recently happened again (my mother this time) and I'm starting to get concerned. The first time it happened I opened a repair issue with Nintendo because I thought that it was a burnt-in thing. Then it cleared up on its own. Any idea what's going on here? Is it caused by my Flash Cart, something with the DSi screen anyway, or something else entirely?