I actually got the one key I was having trouble with (the "Exit" key) to work by using the test function before I saved the learned command. Not trivial for me, since all of my laptops are Macs; I had to bring home my computer from work and install the MX-3000 editor. That did the trick, though; it took awhile, but I finally got a command that learned properly. If anyone want me to upload my device file (and you can talk me briefly through how to do it), let me know.