Logitech should be ashamed of themselves. When their 600 and 700-series remotes suddenly started getting sold at bargain prices, I should have smelled a rat. Mine just stopped working today. Looks like the battery enclosure is slightly too big, so when you move the remote, it goes off. Happens every 2 minutes now. And it's not just a matter of getting it to work again: you have to switch all your AV equipment off and try again ... only to have the remote die again 2 minutes later. Car companies recall their cars. Logitech is too untouchable for that, apparently.