My Panny digibox (TU-DSB30) has started displaying some very strange problems. Firstly, the picture and sound have started breaking up very badly, but only on the BBC, ITV and C4 channels (all of them). All other channels are fine. Now, when trying to navigate the menu after "watching" one of these channels the box freezes and the red remote light comes on on the front panel. Then the box either shows just a blue background and the banner for the channel (channel navigation is still possible) or else requires a hard reboot. I've heard of problems with Panny digiboxes since Sky's last software update but is it possible I just my dish realigned?