Nikon have just released Version 2 of Distortion Control to load into your camera.
Before you can do this, you must first update the latest firmware, A 1.00, B 1.01.
Then you can load L 2.005 version of Distortion Control.
It's all on their website.
Make sure you have a spare SD camera formatted card before you begin (don't loose your shots!) and to download use 'Run' and not 'Save' otherwise it wont work.
I also had to disable my Tinternet security software. Another member of the failed FL2 clutch/DMF club, twice.