I too have been following this thread for a while. I have a IPaq 3950. I love the TR program and I used to be able to learn commands in CCF mode, but I cannot now. Actually it says [C] TR Learned if I look at a button in ProntoEdit but it doesn't work. I can learn buttons in Native mode and it works. My range is very good in Native and CCF mode. If I use a CCF device file, it works, but I am getting the double tap problem (press button once and it sends multiple commands.) I am using the latest version 2.1.333. I've done the open in Tonto save in Tonto open in Pronto ... etc. What am I doing wrong when I learn commands in CCF mode?