Once again I need some help. I have an Iway 600c which I upgraded the software from 1.2 to 1.3 After the software upgrade I installed the 2010 map upgrade. When the map upgrade finished installing the 600c kept restarting and shutting down I can not stop this cycle unless I turn the unit off. I have successivly upgraded more than 12 Iway 500c's and 2 Iway 600c units with no problem. Any help is appreciated.