I have a LG tv. 47lv5400. I have Vanco cat5 to HDMI converters. 70 to 80 ft. in length. I am running a DTV receiver HR24 out to a Pioneer 523 surround sound. The way it is run is sat rx out to HDMI in on ss rx. HDMI out to cat5 converter. At tv which is 70 to 80 ft away I have the rx end of the cat5 converter. At this point I go cat5 converter HDMI out to tv. I am just transmitting video here. It works ok until the tv is turned off. When I go to turn tv back on the image is there but the screen is purple. I can turn off ss and back on and it clears up or I can switch inputs on ss. (ex: Go from TV/SAT input to DVD and back) Either on of these functions will clear up tv until tv is turned off again. I replaced the cat5 converters first with no success then I replaced the Pioneer ss and it worked for awhile but now it is doing it again. Is this a handshake issue? This is a customer of ours and they are rapidly becoming impatient. Please, does anyone have any suggestions? Oh and I replaced the tv as well with no luck.