Recently purchased a 2018 Viking Rancher. So wanted to join forum to have a chance to share good, bad and request questions on issues. Which brings me to a current concern I have with this machine. When I first start it up I can change from 2x4 to 4x4 and the display changes almost immediately. Once I drive it for 3-5 minutes in 4x4 and try to change it back to 2x4 I have to drive roughly 100 yards to get the display to change back. My hearing is not that great but am certain that the unit did switch back to 2x4. The service department has not looked at it yet but has inquired to tech support for possible causes and adjustments to resolve this issue. Was wondering if anyone else has this issue or suggestions.