It would be good to integrate in a next software release for Icon 400 (600) a new feature:" switching between more IR hex code sets", to avoid interference between several IR controlled devices, e.g. between Icon 400 (600) and interactive beamer Epson 1430wi. When the beamer is on, it intefers signal from remote control which is then understood by Icon 400 (600) as several single commands. So if you push button on remote once it sometimes acts like you have pushed it two or more times. When the beamer is off, the problem is gone.