I received my ezflash IV a few weeks ago and it's working perfectly so far except I noticed today that the battery saving doesn't work for me in Puzzle League. This is a 2 game rom which includes Dr. Mario but I only use it for Puzzle League. Does anyone have battery save working in that game? I'm wondering if this is a known problem or just me... After I play a few levels in Puzzle League and restart my GBA the saving screen flashes briefly and then goes away without saving. In other games it stays on that screen for 5-10 seconds and saves properly.