Anyone else out there having overheating problems since the 0x4a6 software update? I've had it twice. The first time when I turned on the TV I got the message my box was at 144 degrees and the max safe temp was 140 so it was going to cool down. This morning when I tried to turn on the system it wouldn't come on at all. I eventually had to do a RBR to get it to start up and the same message and results came back on the screen. The unit is in an enclosed cabinet and has been for over two years with no previous problems! Just wondering if this could be a system software problem or if my receiver is actually getting ready to go out. I have an HR23-700. Thanks.