So, I had my DS lite repaired because the On-OFF switch broke. To my surprise, instead of replacing the switch, the repair team (official Nintendo service) replaced the whole motherboard and I had to pay $50. Also, I have to notice that it took them one and a half month to repair my DS Lite. Now that's what I call costumer support. Well, the problem is that my repaired DS Lite has lower refresh rate than before, or so it seems to me. Both screens look like a 50Hz CRT TV, meaning that the screens give a rapid "shaking" or "flickering" feeling to your eyes. Also, if you shake a little the DS, you can see horizontal lines across the screens, because of the low refresh rate. That was something that my GBA SP does, because of low refresh rate, but the first thing I noticed with my new (back then) DS Lite was that it didn't have this problem. I took it back to Nintendo, only to tell me that this is normal and that my DS is just fine. But no matter how "just fine" the screens are, it is very stressful to your eyes if you play more than half an hour. I just wanted to ask if anyone else had a same problem with his DS.