Anyone got a HDMI splitter from Neet Cables? I've had it a week and at first it worked fine, but today all I get is a black TV screen. Plug the TV straight into the Sky box and its fine. I bought the splitter and Neet Cat5e extender baluns at the same time and the extenders still work fine if I take out the splitter, just wondering if anyone else here has experience of Neet and can comment on their general reliablity.