Which box do you have so we can offer tailored support.
General things to try are disconnecting the box from the mains and then restarting the box.
Checking cables, reversing the hdmi cable or using a different hdmi cable.
Check for updates.
As a last resort, a factory reset should reset all apps.
Hope this helps. Let us know how you get on.
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).
