I've searched every battery-related thread I could find, trying to solve my problem, but the only solution I can come up with is that my internal memory chip is kaput. I got the unit off ebay, and the battery was obviously dead, because it couldn't hold the date/time info and never kept a save game (even though i made sure that i could load a savegame IN THE GAME), so I changed it with two seperate batteries from a brand new VMU. Nothing. So I went out and bought a 2032 from best buy, same thing. I makes me enter the date/time every time I boot up, even with the brand new battery inside, and no saves are retained. Now, if i can actually SAVE something and load it back up during gameplay, does that mean the memory chip still functions? Hope so.