I bought a new AVR-520 from JandR a couple of weeks ago and it's worked fine so far. I'm thrilled with it. But... There's been a lot written on this forum about the x20 auto-shutoff problem, so I thought I'd ask how many people have had one of these receivers for at least three months and have NOT experienced the problem. From all that's written here (and elsewhere), you'd think it was a problem on every single receiver that HK ships.