How do you fix your at&t uverse control?

When you turn on the tv to watch tv it says "press ok to watch uverse tv" i tried pressing "ok" today but it didnt work :( it worked yesterday and every other day... but not today :( does anyone know how to fix this?|||You need to Press the AT%26amp;T button at the top left then press OK. The AT%26amp;T mode makes the remote control the cable box.