Thank you Ed. I'm glad I checked!
OMG I am brainless. It's a long story with some weird bad luck. Several years ago we got a new puppy, then my receiver started shutting down. I then noticed my surround left wasn't working, sure enough the dog had mangled the wire behind the couch. Fixed that, problem went away for a while, then started back up again a year later. Intermitant since, and finally really going out more. I took the receiver out and replaced it with an old power amp and then started having a problem with distortion in the left front speaker. It can't be both amps, so I checked and discovered it was a bad wire. The dog and cats play with the wire occasionally. Then hooked up the HK again and it started having problems again, and started thinking it has to be the receiver. Duh, when my wife and I changed the HK back in a couple of speakers got hooked up out of phase. I discovered this when I checked to make sure there were no wires touching. I cranked up the pixies live DVD for an hour and a half with no ill effects. So I guess I'll wait a year or two before getting a new receiver, I've got time now. I do want to get a new receiver because I want to have DPL II and maybe hdmi switching?
On a side note, I bought a pair of surround 550THX's for another room and emailed M&K a question and also mentioned I was looking for a receiver or amp. He mentioned he's had 50,000 emails over the years and from this info gave me some suggestions of amps that people were happy with (no problem with 4ohms and people really liked) and ones that annoyed them (had trouble handling 4ohm loads and or didn't like). Marantz which I was told made my HK was one of the favored lesser priced amp/receivers as was NAD, Denon, Outlaw and Sherwood. The 3805 had a lot of happy campers. You could tell by the email he wasn't real thrilled with some companies claiming their products could handle 4ohm loads and couldn't and others that claimed to make high end amps and didn't.
This is the 3rd time over the years I've contacted them and each time I got immediate help. When my sub speaker died after a decade they sent me a new one for only $60. Each time they've been very quick and specific with their replies.