At least once a week one of my electronic devices seems to freeze. The only thing that doesn't is my old-style cell phone and when I watched a video from BBC I understood why. Because all my other gadgets have a lot of sophisticated software and sometimes that software gets confused. What to do? Think of the problem as your brain slowing down after a day's activity and after a good night's sleep it works well again. Well, an electronic gadget doesn't need 8 hours sleep, the off/on switch seems to fix a lot of problems. Check put the full video on BBC Click.