Um, No. Either the Nav is going nuts or your Bordmonitor is sending signals it shouldn't be (all related to the righthand knob). Try leaving your screen in the Street Name Input screen or Settings menu and see if it moves left/right there too......I was just wondering if this is normal?
Unfortunately, that is the factory default. You can set the screen to point NORTH or in the DIRECTION OF TRAVEL only below the 1 mile scale.The reason I find this annoying is I prefer the car direction facing up, and when it changes scale to the 1 mile setting, the map changes so that north is facing up.