Is it common for the 770 to cut out? I have only started to use my 950/770 recently, maybe 3 or 4 hours of use since I hooked them up, both new. I have it connected to 2 Paradigm Studio 100's, a 570 center, and 4 ADP Studio surrounds. It seems that it was running warm at nominal levels, then when I played less then 5 minutes of louder levels, it cut out. I let it sit for a few minutes,and then it cut out again after maybe 2 minutes of loud playing. I had to reset the switch in the back both times. I have it in a rack with about 8" of clearance above it. Does it need a fan on it all the time? I am shocked that it will not handle this level, as it wasn't loud enough to distort. Does this problem occur for anyone else?