Me too facing following problems in the last few days.1. When mains power for the stb is switched on, the stb hangs in the boot up-initialisation stage and does not proceed to channel 100. Putting the STB in standby mode with remote and restart works. 2. When channel is changed with channel up/down button, the screen goes dark and channel is not selected. Pressing the channel button down and then up selects the channel (or entering the channel number).3. Channel watched goes dark for a couple of seconds and then comes back.I have not faced any problem with programmed recordings so far, but this is most dangerous as the main purpose is defeated. Frequency of the problems reported is rather low but mildly annoying.