Just had my car in for service because my I drive would at times not boot up. The dealer upgraded my software. Now the Nav system has a new look and features. There's icons on the left side of the screen. I can figure out what most of them are but am not sure what some do. Where can I get a description of them and any new features? I've been off this board for a while and am sure you all have discussed it. BTW, my TCU (telephone communication unit) wasn't compatible with the new software and needed upgrading