I've bought and installed an HDMI over Cat5 with IR Extender (TwinWire 50m) direct from HD Connectivity and whilst I get perfect picture and sound extending Sky HD to my remote television, I am not able to get the IR Extender to work. I have ensured that the SKY remote actually passes through an IR light (using my camera phone to check at the Tx end) I have also located the IR input window on my Sky box using a bright light but nothing seems to happen when trying to use the remote. Oh and I've disabled the Samsung Anytime setting on my TV. Any suggestions or do I have a faulty IR Passback?? Thanks in advance for any help. Just tried with brand new batteries in the remote, but still not working.