I'm fairly new to the site and it is possible that I just missed this somewhere, but I was curious as to what the differences are between the x5 and the x5v firmwares. I searched this site, google, and the x5 manual and didn't find much. My apologies if this is a dumb question, but a simple and quick reply is all I am looking for. I already installed the x5v firmware before, but noticed that my unit would get really warm and the battery life was quite a bit worse (and I've read a bunch of threads on this but still haven't found the answer.) I didn't know if this would be caused from using the wrong rockbox firmware for my unit or not. I'm guessing no, but I would still like to know the difference between the firmwares. Thanks for all your hard work!