I have been noticing when I startup the GX in the radio or other screens and switch to the nav display the screen sometimes is very light or overly dark in night mode and has no contrast where you can not see the roads or details. I have found if I shutdown the GX and restart in the nav screen it comes up and is bright and you can see the details but not when you start up the GX on a diff screen then switch to it. Some times it is good and others the screen is washed out. I will take a few pics the next time it happens and post. Has any one else noticed this? I have the 24 OT.