I just got home from work, and when my computer booted up, everything was back to default, and now it will no longer save. This obviously sounds like a dead battery to me, however they ususally don't just drain that fast. One thing that I did that I don't normally do is I left my HD-USB anttena plugged into the USB port. There was absolutely no power going to the PSU when I turned the machine off last nite as usual. So, can it drain the battery?