D800 autofocus problem

My D800 also has auto focus problems on the left AF field. The enclosed picture shows that from the middle to the right, the AF performance is as expected and good, from the middle to the left the focus performance becomes worse the further you go to the left.

The results are pretty bad overall when using the left-field AF points:

I've summarized my finding on my blog.
http://hifivoice.wordpress.com/2012/05/05/d800-autofocus-problem/