I used to use Rudolph's tool with my R4 and my 3-in-1 worked fine on NOR mode and everything, but now that I've switched to the Cyclo and stopped using the tool, Golden Sun and the sequel both give me "Unable to Save" messages. I haven't tested this with any other roms, but I've tried a clean rom and a rom patched with GBATA... I think it was the SRAM patch? Or something like that anyway. Any idea what's going on?