Recently my Premier which has always been a bit glitchy in menus has developed a new behavior. You'll sometimes hit the menu button and instead of the menu you get a black screen. The live TV is still visible in the top right corner so the signal seems fine, but the menu itself is black. If you move the menu selection around via the up/down arrows, you can hear the sound effect and you can return back to live TV with the proper button. Hitting the menu button twice typically resolves, but sometimes you have to go in and out a few times. Is this a failure sign I should be aware of or is it some new awesome menu bug that got introduced recently?