I'm very nervous about starting up our new 720. I read the sticky about what to do before using your tomtom but it seems like it an old thread. For example, step #4 states: [I]Turn on your 910. If it needs some juice?put it on the dock and give it some power but DO NOT hook it up to the computer yet.[/I] The only dock we have hooks only to the computer via USB. I'm working with a Mac powerbook fyi.\r\nDo I still need to perform this 'back up' that the thread refers to?\r\nWhat the heck is firmware? and how do I know which version I have?\r\nHow do I make sure I have the most up-to-date maps?? (our street is not recognized and it's been here for about 5 years)\r\n\r\nI'm a total rookie with the tomtom and not exactly a computer genius..I'm very nervous to mess something up! I need some input for all the experts out there... \r\nAny help appreciated!!