I've just received a new BT Youview box with a new tv package and it will not play any content beyond the adverts on All4 and 5OD. I've seen some historic threads on this and it was apparently solved with a software update but I've downloaded the latest device and app software and no joy. My tv is a smart tv so I can switch across to use All4 using the tv interface and no issues at all. It's the Youview box causing the problem but I have no idea how to fix it. Can anyone please help? Thanks.