I think the battery (?) might have died on my 3in1. I've got an R4 and am using GBAexploder 0.56. At first I though it was because GBAXPL wasn't in the root directory (GBA used to work fine with old Rudolph's tools), but I just now check it by starting (yet another) new game of Metroid Fusion. The game loads fine and gives me no errors during saving, but when I turn the DS off and load up the game again, there are no saves present in GBAXPL (Even though the old save files are in the gba_save directory) and no new data has been written to my slot 1 card. GBAXPL also asks me everytime if it can set up my slot 2 device, not sure if this is supposed to be an everytime thing, or if it's indicitive of my error. This sound like a battery to you guys? Hell, does the 3 in 1 even have a battery?