Can somebody at Rio actually do the firmware properly and make it timeout and shut off if it can't read the HD? At the moment it'll just go tick tick tick until the battery runs flat if you don't happen to have a 6 foot pin handy to reset it with. The backlight doesn't turn off when this happens as well so the entire Karma gets quite warm.

It's exceptionally annoying for it to lock up like this. The crap Hitachi HD inside is incredibly sensitive to any movement and will cause the Karma to lock up frequently. This is in addition to the other failure where it just refuses to start up again unless you smack it particularly hard to unstick the heads/motor/whatever inside the HD.