Duo Buttons Not Working Properly

Hi all, I have my dads genuine duo here, recently it has started doing something strange, When i open EPG then press exit it wont close until i go down one then exit will close the menu, I reflasher with my backup and still the same thing, Also tried flashing the latest openpli 4 image and its doin it more often now, Anyone any ideas what might be causing this, Im out of ideas.. ;-)

Never mind, Turned out the batteries were running low... Feel like an idiot... :-o