We've seen this happen a couple of times where the app software has not downloaded correctly on set up.
The only thing to try is to factory reset the box from the settings menu and hopefully it will install correctly.
Let us know how you get on.
Worst case scenario is that staff next week will arrange to swap the box for you.
Please remember to mark Solved Posts with Best Answer. Doing so helps other customers and saves TalkTalk's Support Team time by only looking at unsolved topics. Thanks, Steve (a fellow customer).
