My Marantz SR7400 remote control switches inputs by requiring you to press the input button twice within two seconds. For example, if I want to switch from DVD to TV I press the TV button twice. The Harmony One does not seem to able to support this action. Has anybody encountered this problem? If so, were you able to resolve it?

I've changed the delays but that does not seem to help and their tech support worked on it for about an hour and was not able to fix the problem either.