I have installed navigator 11 for test on my viliv x70 Windows 7 pro When I open navigator I can find gps and everything work I quit navigator and gps locked I can see that if I reload navigator gps is not found I exit and use utility to check my gps and it is not found communication fail I do not have the same issue when I use street and trip or igudance When I boot the machine gps is back Any ideas ??? I use com1 and baud 4800