I got up in the middle of the night to go get some water and in the darkenss I noticed that there was a bright green light flashing rapidly over by the TV. Upon investigating, the light was the green power light on my TivoHD that is normally steady on. There was no video or audio signal coming from the TiVo to the TV, no other lights on the TiVo panel were on and the TiVo was completely nonresponsive to signals from the remote (the yellow IR detection light wouldn't even come on). So I freaked out and powercycled the box. During the reboot it said it was installing a service update. It's now in the middle of "Preparing the service update. This may take up to an hour, possibly longer". I guess I'll find out in the morning if the box is working again. In the meantime, does anybody know what the rapid flashing green light is supposed to mean?