Guy, I was looking into the top of my Yamaha Rx-V620 while watching Episode I today at a very low volume (just -58db) and I think I saw a blue spark and the receiver just shut down. I turned it on seconds later and its worked just fine since. What the hell do you guys think happened? I think Im gonna take it back to the Good Guys this week and try to exchange it. Its got a value of $499 but I was able to get it for $375 since it was a return item. Do you think I should return it for the exact same model, or if they allow me, exchange it for another receiver of the same value. If exchange for another type of receiver...what do you recommend?