Sqary, I too had the same problem with the middle hard key (Watch TV) on both my 659 and 680. The key was assigned to "Watch PVR" but I noticed that it flagged this activity as the default for that key. The activity for the other 2 hard keys were not flagged. So I created another "Watch PVR" activity which became the flagged default. So I assigned the non-flagged "Watch PVR" activity to that key and that cured the problem. I then deleted the flagged activity to see if the problem would come back. It did not although the now single non-flagged "Watch PVR" activity became the flagged default. Very strange quirk. It might come back when I do another reorder.