Yeah, it was pretty stupid. The HDMI cable seemed to be bad, so I replaced it. It worked--for a while. But because you have to open an access panel, it left some of the innards exposed. Well, some saline from a cathode dripped onto the HDMI connection and the video went out. It's still an Oculus Rift. Everything about it seems to still function--all except for the video. I'm in the process of getting a replacement. I hope they replace it, or are able to provide a solution of some sort.
Folks, if you get a DK2, be very careful. There do seem to be some problems with the HDMI connection, which have been reported by several others. There may be nothing that you can do about it, but to be on the safe side, handle your Rift with great care.
Regardless, I'm going to get a replacement. The question is whether Oculus is willing to replace it (there's no warranty as it's a beta device--it's sold 'as is'--understandable), or whether I should wait for the commercial version. They say that it's going to be released 'within months'. It makes no sense to get another DK2 if it ships in six weeks, and then another four weeks later the commercial version becomes available. I am miffed. But I'm also happy because I know that the Rift is an effective tool for vision therapy, the best thing out there so far by far, in my humble opinion. I'll get another Rift and back at it, fixing my vision with Diplopia with hopefully only a minor hiccup.