I thought I’d pass this along although; this is more of a theory then Nintendo fact. A friend that works in a video game store had been receiving a large amount of DS lite returns mainly due to a cracked hinge. After examining a hand full of the white US lites & comparing them to other imports like the black & blue lites. He noticed that although the US lites seem to be made from the same thickness & quality plastic as the others. The left hinge of the top screen seemed to rub more on the US versions almost like a tighter fit. His store has since added a drop of lubricant such as WD-40 or a clear oil before selling any new lites & have not received a crack hinge return since. His theory is the tight fit & constant opening & closing of the top screen, stresses that little strip of plastic causing a crack. He has contacted Nintendo to tell them of his findings, but the people he had talked to tell him there is no crack problem that there aware of so have no need for his theory. So if you have a good US lite & are worried about a crack forming give the lubricant theory a try. I can’t see any harm coming from it & if there’s any truth to it you’ll save your self a return. But remember this is just a theory. Looking at the picture, just put a drop of clear lubricant in between the (A) & (B) on the red gap.