I had it do the blue thing once when it was in my truck a 2004 Dodge Ram. I removed it a couple of months ago, then a buddy wanted it so we put it in his 2001 Ford Supercrew 2 weekends ago. Sometimes the map will work fine, but you can drive into blue. We thought it might be an antennae so we put in a new GPS antenae with the same symptoms. It hasn't successfully uploaded a navigation (won't tell you where to go). Also sometimes it asks for the disk to be inserted when it's already in the drive.