To the best of my knowledge, my camera was working just fine and dandy before I tried out one of those Ejji 10k batteries in it. Popped it in, flipped the camera on - everything looked normal. Loaded the AA pack back in and went on my merry way. Around two hours later when I went to actually use the camera, neither the lens nor the back were registering. No AF, no aperture control - and '--no FB--' kept on appearing on the top LCD screen. I tried battery pulls, remounting everything etc etc.. to no avail.
Can't for the life of me figure out what the hell has happened, but I would *love* it if someone could tell me what could possibly have gone wrong.