Steven,
something that happened to me about a month ago was that my HDMI output would not work. I narrowed it down to the HDMI output because the component out on the K worked fine and I bypassed my pre/pro and put the HDMI directly into the projector and it still didn't work and switched out to another HDMI cable and it still didn't work.
After wasting about 30-45 minutes on this, I turned off the 1080p PLAYER (NOT the server-because I've read on these forums that you need to power down the server in a very specific fashion - but I digress), waited a minute and turned it back on and BINGO it worked fine (should have done that first)....anyway, not sure if that was what you meant regarding a problem with an "output" or not, but those are the specifics of what happened to me and the high-tech fix I did.