I have an AVN6000 and the screen seems to need calibrating. Along the top of the screen, I can't press any of the buttons correctly. The rest of the screen is fine.

For example, I click Display then try and turn the screen off. It won't allow me, I have to press in the very top right corner of the off button to make it work.

I was given these instructions but have had no joy:
a. Prior to starting, PLEASE check your Navigation DVD is inserted
b. Turn ignition on, press agree.
c. Press Audio then PWR( or audio off) - HU should be at the Audio Off screen, no keys displayed.
d. There are 4 hidden keys on this screen as shown below:
e. Press 4 then 2 then 4 then 2 then 4 then 2
f. check calibration settings



Does anybody know if there is some form of calibration for the AVN6000?