So I finally got this working not sure why this is the case, but to use the back button or the menu button, I have to actually first select devices on the remote and then the flirc media player. Every other button besides these two work right away when when starting the activity. Does anyone know why this is? I have been using harmony remotes for years with windows computers (have 3 in the house all using harmony remotes) and have never had to change to a certain activity for some buttons to work. At least this now works, I have been beating myself up for days trying to figure this out.