hi everyone, i got my son the DSL because he had the old model, which has the R4 card and works great, but when i swaped the R4 into the new ds, it says (couldnt find_DS_MENU.DAT) ive tried everything like reformate and restart. but nothing works the actual sd card works fine on my other R4 card. so its definetly not the sd card. the R4 card still work on the old DS but not the new one. can anyone help please.