When I attempt to update my 720, I get "Plug the USB cable into the remote control, or press any button on the remote control to wake it up.". Everything else about it works fine and it worked fine the last time I updated it. The 720 is not recognized on the computer in either OS X 10.5.6 or in XP via Bootcamp. Its not that its seen as an "Unknown Device", its not there at all. The 720 does recognize it is connected to USB and displays "USB Connected". I've tried different computers and cables and USB ports. Keeping everything the same and plugging in the Harmony 520, it updates fine. So this narrows it down to the 720. I've searched through Logitech's support site and have attempted every suggestion there, nothing works. Since I'm not able to communicate with it, I don't see there being any way to get it working via a software or firmware update or anything similar. It there any key combination or anything similar to return it to factory settings?

Thanks!