Whenever I try and setup my FLIRC to learn from my Comcast Xfinity remote it always says "button already exists." I clear it, I clear it.  Nothing works.  It will not learn off this remote.  This is the remote I am trying to pair my key presses with --> http://amazon.com/dp/B00FP1B8LY/ref=pe_385040_121528360_TE_dp_1     If anyone knows what to do Id appreciate it