I had this problem a couple of days after i got my Vive. After checking all connections I was fairly confident that the issue was the 3-in-1 cable itself. My symptoms were black outs (just black) periodically, strange cross-eyed views sometimes as well. The problem is a matter of time if you let your cable get twisted up to much. KEEP AN EYE ON THE TWIST! The cables are fairly week and twisting will break them. After a discussion with my kids, I was told that yes indeed the cable had gotten very twisted up and that was my clue that there was a minor fracture somewhere in the cable. I orderd a new one from HTC, it arrived in 2 days and not a problem since.