D90 Thin black line
I was out using the D90 today, giving my D7000 a welcome rest. However I noticed that when the camera is powerd on, there is a very thin black line from the center focus point to the bottom of the frame.
If I move the focal indicator to the left, the line changes to going to the active point, to the left of the frame.
Same on the right hand side. (Focal point to the right of the frame). Has anyone ever seen anything like this before? The camera has 6k approx shutter count.
Any ideas whats causing this?