I installed a Panasonic 42" plasma with a Niles irp2+ ir system about 12 inches below it and it worked great for about 6 weeks. Now it hardly works, very intermittent. Shows a very light green light in the target when plasma is on and none when it is off. Can't figure it out. Even with the target about 6-8ft away it still does not work. Any suggestions? Using a TSU-6000, should I go with the RF repeater? I have heard those have problems also.