There's been a lot of talk about the Nikon D800 having severe focus problems with the left six focus points, and even some videos that show some pretty dramatic results.
I tested mine today and luckily there wasn't a problem. So the good news is it doesn't affect ALL Nikon D800. Whether it's an issue with certain batches of D800's or single cameras remains to be determined.
Hopefully Nikon can fix these cameras without too much hassle.