My cable box reset without any intervention. It started to show "to be announced" on all channels, and to ask me for the pin every time I change the channel. I reset it myself after a while, but the same thing happens. It has been now several hours, and the double arrow on the front of the box is still blinking, all the channels show "to be announced", and every time I change the cannel I am being asked for the pin. It's annoying. Any ideas?