I set up my HD2 at home for my sister put it to deep standby unplugged everything and set it up again in her house and now the display is blank the only thing that's working is the remote flasher that's it is there a function button iv missed? The box is brand new from WOS first time it's been switched on

Any help will be brilliant and hopefully it's me and not a fault because the box is a smasher

Using vix build 726