My recently purchased RM100 has been cutting out randomly - doesn't blow a fuse, acts like I'm hitting the standby switch - volume just disappears. Comes back after a minute or so. Doesn't change channels (like a 'reset') Happened three times late last night while I was working with other issues. Thought at first it was my wireless cutting out, but ALL volume/noise goes away, and it also did it with a 'real' cord. Is this a known issue? Any ideas? Cold solder joint? (Hopefully) Thanks!