Hello, I recently purchased a new Panasonic XR-55, and so far twice within the first month of owning it I got the overload error. Both times occurred when it had been on for an extended period of time (at least over 24 hours) and I would describe it as more than a bit warm on the left side. I also had to disconnect the left surround channel due to WAF, but I only disconnected the wire from the speaker and not the back of the receiver... unsure what having an infinite impedence would do there. Using a set of JBL NSP1s that I bought 3 years ago, with a BIC H-100. I am very happy with the set-up, just got a bit freaked out. As a remedy I now turn the receiver off instead of leaving it on. I also think my 2 year old son might've cycled the power on-off a few times... while it was warm. Yes, I deserve a good yelling. So far that has solved my problem. Both times after overload I was able to turn the receiver back on. I've been listening at around -50 dB or less... yes an apartment (at least we are downstairs). Should I be concerned enough to have it serviced? If it happens again without heat I'll be concerned.... I just wanted to share my experiences and wonder if any other owners of this receiver have had similar occurrences. I can see why people want a heavy receiver... probably acts as a better heat-sink... but I'm very happy with this receiver... wish I could drive it a little louder.